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Recent questions and answers in Numerical Ability
+1
vote
3
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1
GATE2019 ME2: GA4
The product of three integers $X$, $Y$ and $Z$ is $192$. $Z$ is equal to $4$ and $P$ is equal to the average of $X$ and $Y$. What is the minimum possible value of $P$? $6$ $7$ $8$ $9.5$
answered
1 day
ago
in
Numerical Ability
by
Nikhil gate 2020
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271
points)

146
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gate2019me2
generalaptitude
numericalability
numericalcomputation
0
votes
2
answers
2
GATE2018 CE1: GA6
A fruit seller sold a basket of fruits at $\text{12.5%}$ loss. Had he sold it for Rs. $108$ more, he would have made a $\text{10%}$ gain. What is the loss in Rupees incurred by the fruit seller? $48$ $52$ $60$ $108$
answered
3 days
ago
in
Numerical Ability
by
Kushagra गुप्ता
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150
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gate2018ce1
generalaptitude
numericalability
profitloss
+5
votes
4
answers
3
GATE2014 EC4: GA10
A five digit number is formed using the digits $1,3,5,7$ and $9$ without repeating any of them. What is the sum of all such possible five digit numbers? $6666660$ $6666600$ $6666666$ $6666606$
answered
3 days
ago
in
Numerical Ability
by
Lakshman Patel RJIT
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58.9k
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1.2k
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gate2014ec4
numericalability
normal
permutationandcombination
+13
votes
3
answers
4
GATE20152GA6
If the list of letters $P$, $R$, $S$, $T$, $U$ is an arithmetic sequence, which of the following are also in arithmetic sequence? $2P, 2R, 2S, 2T, 2U$ $P3, R3, S3, T3, U3$ $P^2, R^2, S^2, T^2, U^2$ I only I and II II and III I and III
answered
3 days
ago
in
Numerical Ability
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Lakshman Patel RJIT
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1.2k
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gate20152
numericalability
normal
arithmeticseries
+1
vote
3
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5
ISRO202055
If $x+2y=30$, then $\left(\dfrac{2y}{5}+\dfrac{x}{3} \right) + \left (\dfrac{x}{5}+\dfrac{2y}{3} \right)$ will be equal to $8$ $16$ $18$ $20$
answered
Jan 13
in
Numerical Ability
by
braindead
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787
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241
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isro2020
numericalability
easy
+1
vote
2
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6
GATE2018 ME2: GA6
Forty students watched films A, B and C over a week. Each student watched either only one film or all three. Thirteen students watched film A, sixteen students watched film B and nineteen students watched film C. How many students watched all three films? 0 2 4 8
answered
Jan 13
in
Numerical Ability
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Kushagra गुप्ता
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gate2018me2
generalaptitude
numericalability
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+13
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5
answers
7
GATE20162GA06
Among $150$ faculty members in an institute, $55$ are connected with each other through Facebook and $85$ are connected through Whatsapp. $30$ faculty members do not have Facebook or Whatsapp accounts. The numbers of faculty members connected only through Facebook accounts is _______. $35$ $45$ $65$ $90$
answered
Jan 13
in
Numerical Ability
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Kushagra गुप्ता
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4.1k
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2.9k
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gate20162
numericalability
venndiagrams
easy
+7
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3
answers
8
TIFR2013A1
An infinite twodimensional pattern is indicated below. The smallest closed figure made by the lines is called a unit triangle. Within every unit triangle, there is a mouse. At every vertex there is a laddoo. What is the average number of laddoos per mouse? $\quad 3$ $\quad 2$ $\quad 1$ $\left(\dfrac{1}{2}\right)$ $\left(\dfrac{1}{3}\right)$
answered
Jan 8
in
Numerical Ability
by
Vimal Patel
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313
points)

460
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tifr2013
numericalability
permutationandcombination
+3
votes
4
answers
9
GATE2015 ME3: GA5
Five teams have to compete in a league, with every team playing every other team exactly once, before going to the next round. How many matches will have to be held to complete the league round of matches? $20$ $10$ $8$ $5$
answered
Jan 8
in
Numerical Ability
by
Vimal Patel
(
313
points)

1.3k
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gate2015me3
numericalability
permutationandcombination
0
votes
2
answers
10
ISI2015DCG2
Let $S=\{6, 10, 7, 13, 5, 12, 8, 11, 9\}$ and $a=\underset{x \in S}{\Sigma} (x9)^2$ & $b = \underset{x \in S}{\Sigma} (x10)^2$. Then $a <b$ $a>b$ $a=b$ None of these
answered
Jan 5
in
Numerical Ability
by
`JEET
Boss
(
19k
points)

78
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isi2015dcg
numericalability
summation
+1
vote
3
answers
11
GATE2011 AG: GA6
The sum of $n$ terms of the series $4+44+444+ \dots \dots $ is $\frac{4}{81}\left[10^{n+1}9n1\right]$ $\frac{4}{81}\left[10^{n1}9n1\right]$ $\frac{4}{81}\left[10^{n+1}9n10\right]$ $\frac{4}{81}\left[10^{n}9n10\right]$
answered
Jan 4
in
Numerical Ability
by
Lakshman Patel RJIT
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58.9k
points)

312
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generalaptitude
numericalability
gate2011ag
arithmeticseries
+13
votes
6
answers
12
GATE2011 MN: GA61
If $\dfrac{(2y+1)}{(y+2)} < 1,$ then which of the following alternatives gives the CORRECT range of $y$ ? $ 2 < y < 2$ $ 2 < y < 1$ $ 3 < y < 1$ $ 4 < y < 1$
answered
Jan 4
in
Numerical Ability
by
Lakshman Patel RJIT
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58.9k
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736
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numericalability
gate2011mn
algebra
+18
votes
6
answers
13
GATE20152GA7
Four branches of a company are located at $M$, $N$, $O$ and $P$. $M$ is north of $N$ at a distance of $4 km$; $P$ is south of $O$ at a distance of $2$ $km$; $N$ is southeast of O by $1 km$. What is the distance between $M$ and $P$ in $km$? $5.34$ $6.74$ $28.5$ $45.49$
answered
Jan 3
in
Numerical Ability
by
Manu Shaurya
(
429
points)

4.8k
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gate20152
numericalability
normal
directionsense
+2
votes
4
answers
14
GATE2014 AG: GA6
In a group of four children, Som is younger to Riaz. Shiv is elder to Ansu. Ansu is youngest in the group. Which of the following statements is/are required to find the eldest child in the group? Statements 1. Shiv is younger to Riaz. 2. Shiv is ... and $2$ are both required to determine the eldest child. Statements $1$ and $2$ are not sufficient to determine the eldest child.
answered
Dec 29, 2019
in
Numerical Ability
by
Lakshman Patel RJIT
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58.9k
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838
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gate2014ag
numericalability
logicalreasoning
normal
+8
votes
4
answers
15
GATE2011 GG: GA7
In a class of $300$ students in an M.Tech programme, each student is required to take at least one subject from the following three: M600: Advanced Engineering Mathematics C600: Computational Methods for Engineers E600: Experimental Techniques for Engineers The registration data ... number of students in the class who have taken all the above three subjects? $20$ $30$ $40$ $50$
answered
Dec 29, 2019
in
Numerical Ability
by
Sambhrant Maurya
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3.9k
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988
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gate2011gg
numericalability
settheory&algebra
venndiagrams
+5
votes
4
answers
16
Time and Work
Atul does half as much work as Anshu in $\dfrac 4 5$ of the time. If together they take $16$ days to complete the work, how many days shall Anshu take to do it? 23 25 26 30
answered
Dec 16, 2019
in
Numerical Ability
by
Lakshman Patel RJIT
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58.9k
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896
views
numericalability
worktime
0
votes
4
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17
Work and time
A can do piece of work in 30 days while Bonku alone can do it in 40 days. If they work together, how long will it take to complete the work?
answered
Dec 16, 2019
in
Numerical Ability
by
Lakshman Patel RJIT
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(
58.9k
points)

148
views
+3
votes
4
answers
18
TIFR2019A11
Suppose there are $n$ guests at a party (and no hosts). As the night progresses, the guests meet each other and shake hands. The same pair of guests might shake hands multiple times. for some parties stretch late into the night , and it is hard to keep track.Still, they don't shake ... $2 \mid \text{Even} \mid  \mid \text{Odd} \mid$ $2 \mid \text{Odd} \mid  \mid \text{Even} \mid$
answered
Dec 7, 2019
in
Numerical Ability
by
shivam001
Junior
(
977
points)

360
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tifr2019
generalaptitude
numericalability
logicalreasoning
+3
votes
1
answer
19
TIFR2011A5
Three distinct points $x, y, z$ lie on a unit circle of the complex plane and satisfy $x+y+z=0$. Then $x, y, z$ form the vertices of . An isosceles but not equilateral triangle. An equilateral triangle. A triangle of any shape. A triangle whose shape can't be determined. None of the above.
answered
Dec 3, 2019
in
Numerical Ability
by
mkagenius
Junior
(
611
points)

179
views
tifr2011
numericalability
geometry
complexnumber
nongate
+14
votes
2
answers
20
GATE201157
If $\log (\text{P}) = (1/2)\log (\text{Q}) = (1/3)\log (\text{R})$, then which of the following options is TRUE? $\text{P}^2 = \text{Q}^3\text{R}^2$ $\text{Q}^2=\text{P}\text{R}$ $\text{Q}^2 = \text{R}^3\text{P}$ $\text{R}=\text{P}^2\text{Q}^2$
answered
Nov 28, 2019
in
Numerical Ability
by
JashanArora
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6.4k
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1.5k
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gate2011
numericalability
normal
numericalcomputation
logarithms
+1
vote
1
answer
21
ISI2018DCG30
Let $0.01^x+0.25^x=0.7$ . Then $x\geq1$ $0\lt x\lt1$ $x\leq0$ no such real number $x$ is possible.
answered
Nov 26, 2019
in
Numerical Ability
by
`JEET
Boss
(
19k
points)

52
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isi2018dcg
numericalability
numbersystem
inequality
+1
vote
5
answers
22
GATE2019 EE: GA10
Consider five people Mita, Ganga, Rekha, Lakshmi, and Sana. Ganga is taller than both Rekha and Lakshmi. Lakshmi is taller than Sana. Mita is taller than Ganga. Which of the following conclusions are true? Lakshmi is taller than Rekha Rekha is shorter than Mita Rekha is taller than Sana Sana is shorter than Ganga $1$ and $3$ $3$ only $2$ and $4$ $1$ only
answered
Nov 25, 2019
in
Numerical Ability
by
Shubhm
Junior
(
753
points)

142
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gate2019ee
generalaptitude
logicalreasoning
0
votes
2
answers
23
Test of Mathematics at 10+2 Level
The remainder when 3^37 is divided by 79 is A. 78 B. 1 C. 2 D. 35
answered
Nov 25, 2019
in
Numerical Ability
by
techbd123
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3.5k
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215
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isimaths
+1
vote
2
answers
24
ISI2015DCG8
Let $S=\{0, 1, 2, \cdots 25\}$ and $T=\{n \in S: n^2+3n+2$ is divisible by $6\}$. Then the number of elements in the set $T$ is $16$ $17$ $18$ $10$
answered
Nov 23, 2019
in
Numerical Ability
by
chirudeepnamini
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4.4k
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59
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isi2015dcg
numericalability
numbersystem
remaindertheorem
+1
vote
2
answers
25
ISI2015MMA16
If two real polynomials $f(x)$ and $g(x)$ of degrees $m\: (\geq 2)$ and $n\: (\geq 1)$ respectively, satisfy $f(x^2+1)=f(x)g(x),$ for every $x \in \mathbb{R}$, then $f$ has exactly one real root $x_0$ such that $f’(x_0) \neq 0$ $f$ has exactly one real root $x_0$ such that $f’(x_0) = 0$ $f$ has $m$ distinct real roots $f$ has no real root
answered
Nov 21, 2019
in
Numerical Ability
by
saranpandiangc
(
11
points)

56
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isi2015mma
numericalability
quadraticequations
functions
nongate
+6
votes
2
answers
26
TIFR2019A7
What are the last two digits of $1! + 2! + \dots +100!$? $00$ $13$ $30$ $33$ $73$
answered
Nov 21, 2019
in
Numerical Ability
by
chirudeepnamini
Active
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4.4k
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359
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tifr2019
modulararithmetic
numericalability
0
votes
2
answers
27
ISI2017MMA11
The digit in the unit's place of the number $2017^{2017}$ is $1$ $3$ $7$ $9$
answered
Nov 21, 2019
in
Numerical Ability
by
chirudeepnamini
Active
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4.4k
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43
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isi2017mma
generalaptitude
numericalability
+3
votes
3
answers
28
ISI2014DCG10
The number of divisors of $6000$, where $1$ and $6000$ are also considered as divisors of $6000$ is $40$ $50$ $60$ $30$
answered
Nov 21, 2019
in
Numerical Ability
by
pragyakul
(
23
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172
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isi2014dcg
numericalability
numbersystem
factors
0
votes
1
answer
29
ISI2018DCG27
$\sum_{n=1}^{\infty}\frac{1}{n(n+1)}$ is $2$ $1$ $\infty$ not a convergent series
answered
Nov 19, 2019
in
Numerical Ability
by
Yash4444
Junior
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839
points)

16
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isi2018dcg
numericalability
sequenceseries
summation
0
votes
1
answer
30
ISI2016DCG30
Let $p,q,r,s$ be real numbers such that $pr=2(q+s).$ Consider the equations $x^{2}+px+q=0$ and $x^{2}+rx+s=0.$ Then at least one of the equations has real roots. both these equations have real roots. neither of these equations have real roots. given data is not sufficient to arrive at any conclusion.
answered
Nov 19, 2019
in
Numerical Ability
by
`JEET
Boss
(
19k
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24
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isi2016dcg
numericalability
quadraticequations
roots
+1
vote
1
answer
31
ISI2016DCG28
If one root of a quadratic equation $ax^{2}+bx+c=0$ be equal to the n th power of the other, then $(ac)^{\frac{n}{n+1}}+b=0$ $(ac)^{\frac{n+1}{n}}+b=0$ $(ac^{n})^{\frac{1}{n+1}}+(a^{n}c)^{\frac{1}{n+1}}+b=0$ $(ac^\frac{1}{n+1})^{n}+(a^\frac{1}{n+1}c)^{n+1}+b=0$
answered
Nov 19, 2019
in
Numerical Ability
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`JEET
Boss
(
19k
points)

29
views
isi2016dcg
numericalability
quadraticequations
roots
0
votes
1
answer
32
ISI2018DCG13
In a certain town, $20\%$ families own a car, $90\%$ own a phone, $5 \%$ own neither a car nor a phone and $30, 000$ families own both a car and a phone. Consider the following statements in this regard: $10 \%$ families own both a car and a phone. $95 \%$ ... (iii) are correct and (ii) is wrong. (ii) & (iii) are correct and (i) is wrong. (i), (ii) & (iii) are correct.
answered
Nov 18, 2019
in
Numerical Ability
by
Yash4444
Junior
(
839
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47
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isi2018dcg
numericalability
percentage
0
votes
3
answers
33
GATE2010 TF: GA10
A student is answering a multiple choice examination with $65$ questions with a marking scheme as follows$:$ $i)$ $1$ marks for each correct answer $,ii)$ $\frac{1}{4}$ for a wrong answer $,iii)$ $\frac{1}{8}$ for a question that has not been attempted ... gets $37$ marks in the test then the least possible number of questions the student has NOT answered is$:$ $6$ $5$ $7$ $4$
answered
Nov 18, 2019
in
Numerical Ability
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shivam001
Junior
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977
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110
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generalaptitude
numericalability
gate2010tf
numericalcomputation
+2
votes
2
answers
34
GATE2019 EC: GA3
It would take one machine $4$ hours to complete a production order and another machine $2$ hours to complete the same order. If both machines work simultaneously at their respective constant rates, the time taken to complete the same order is ________ hours. $2/3$ $3/4$ $4/3$ $7/3$
answered
Nov 13, 2019
in
Numerical Ability
by
chirudeepnamini
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150
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gate2019ec
generalaptitude
numericalability
worktime
+2
votes
2
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35
GATE2019 CE2: GA9
An oil tank can be filled by pipe $X$ in $5$ hours and pipe $Y$ in $4$ hours, each pump working on its own. When the oil tank is full and the drainage hole is open, the oil is drained in $20$ hours. If initially the tank was empty and someone started the two ... for the tank to be filled? (Assume that the rate of drainage is independent of the Head) $1.50$ $2.00$ $2.50$ $4.00$
answered
Nov 13, 2019
in
Numerical Ability
by
chirudeepnamini
Active
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4.4k
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121
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gate2019ce2
generalaptitude
numericalability
worktime
+1
vote
2
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36
GATE2016EC_2
answered
Nov 13, 2019
in
Numerical Ability
by
chirudeepnamini
Active
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4.4k
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69
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generalaptitude
numericalability
worktime
+2
votes
1
answer
37
CMI2015B03b
A cook has a kitchen at the top of a hill, where she can prepare rotis. Each roti costs one rupee to prepare. She can sell rotis for two rupees a piece at a stall down the hill. Once she goes down the steep hill, she can not climb back in time make more ... she starts at the top with $P$ paans and $1$ rupee, what is the minimum and maximum amount of money she can have at the end?
answered
Nov 12, 2019
in
Numerical Ability
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`JEET
Boss
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19k
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67
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cmi2015
descriptive
numericalability
+3
votes
1
answer
38
ISI2015PCBA2
Prove that in any sequence of $105$ integers, there will always be a subsequence of consecutive elements in the sequence, whose sum is divisible by $99$.
answered
Nov 12, 2019
in
Numerical Ability
by
`JEET
Boss
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19k
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220
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descriptive
isi2015pcba
numericalability
pigeonholeprinciple
0
votes
1
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39
ISI2018DCG3
If the coefficient of $p^{th}, (p+1)^{th}$ and $(p+2)^{th}$ terms in the expansion of $(1+x)^n$ are in Arithmetic Progression (A.P.), then which one of the following is true? $n^2+4(4p+1)+4p^22=0$ $n^2+4(4p+1)+4p^2+2=0$ $(n2p)^2=n+2$ $(n+2p)^2=n+2$
answered
Nov 9, 2019
in
Numerical Ability
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GATE_aspirant_2021
(
77
points)

44
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isi2018dcg
numericalability
sequenceseries
arithmeticseries
+5
votes
5
answers
40
GATE2014 AG: GA5
The population of a new city is $5$ million and is growing at $20\%$ annually. How many years would it take to double at this growth rate? $34$ years $45$ years $56$ years $67$ years
answered
Nov 8, 2019
in
Numerical Ability
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Arjun
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431k
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2.4k
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gate2014ag
numericalability
simplecompoundinterest
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