Recent questions and answers in Numerical Ability

0 votes

3 answers

1

UGCNET-July-2018-II-75
Consider a vocabulary with only four propositions A, B, C and D. How many models are there for the following sentence? $B \vee C$ 10 12 15 16

answered 4 days ago in Numerical Ability by GoalSet1 (121 points) | 244 views

0 votes

1 answer

2

How to solve this question.
x = 5 + 2$\sqrt{6}$. Find $\frac{x-1}{\sqrt{x}}$

answered 6 days ago in Numerical Ability by sanku surya (45 points) | 104 views

0 votes

2 answers

3

MadeEasy Test Series 2019: General Aptitude - Speed Time Distance
A ball thrown upward satisfy the equation s=160 t - 20 t^2, where S is in m (meter) and t is in sec. what is the maximum height achieved by the ball ? (a) 80 (b) 160 (c) 240 (d) 320 According to me.. Here s=height ... have a velocity of zero (since it will stop at the highest point). So, v=0 than can anyone tell me where I am wrong ?

answered Aug 17 in Numerical Ability by sanku surya (45 points) | 271 views

0 votes

1 answer

4

Algebra
If p(n+1)+p(n-1)=p(n) for every natural number ‘n’then for what values of natural number ‘a’ will p(n+a)=-p(n) a)3 b)2 c)4 d)6

answered Aug 17 in Numerical Ability by sanku surya (45 points) | 57 views

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2 answers

5

GATE2019 ME-1: GA-4
The sum and product of two integers are $26$ and $165$ respectively. The difference between these two integers is ______ $2$ $3$ $4$ $6$

answered Aug 17 in Numerical Ability by sanku surya (45 points) | 67 views

+2 votes

2 answers

6

GATE2019 ME-1: GA-7
A person divided an amount of Rs. $100,000$ into two parts and invested in two different schemes. In one he got $10 \%$ profit and in the other he got $12 \%$. If the profit percentages are interchanged with these investments he would have got Rs. $120$ less. Find the ratio between his investments in the two schemes. $9:16$ $11:14$ $37:63$ $47:53$

answered Aug 17 in Numerical Ability by sanku surya (45 points) | 63 views

0 votes

2 answers

7

Aptitude Doubt
The least number of five digits which is exactly divisible by 12,15 and 18 is: a)10080 b)10800 c)18000 d)81000

answered Aug 14 in Numerical Ability by STUDYGATE2019 (67 points) | 81 views

0 votes

1 answer

8

Square Root Aptitude Doubt
Please help with this question:- $(\sqrt{243}+3)^x+(\sqrt{243}-3)^x=15^x$.

answered Aug 14 in Numerical Ability by STUDYGATE2019 (67 points) | 119 views

+2 votes

2 answers

9

GATE2019 ME-2: GA-7
Two pipes $P$ and $Q$ can fill a tank in $6$ hours and $9$ hours respectively, while a third pipe $R$ can empty the tank in $12$ hours. Initially, $P$ and $R$ are open for $4$ hours, Then $P$ is closed and $Q$ is opened. After $6$ more hours $R$ is closed. The total time taken to fill the tank (in hours) is ____ $13.50$ $14.50$ $15.50$ $16.50$

answered Aug 13 in Numerical Ability by chirudeepnamini (307 points) | 59 views

+3 votes

2 answers

10

TIFR2014-A-2
A body at a temperature of $30$ Celsius is immersed into a heat bath at $0$ Celsius at time $t = 0$. The body starts cooling at a rate proportional to the temperature difference. Assuming that the heat bath does not change in temperature throughout the process, calculate the ratio of the time ... $\dfrac{\log 29}{\log 25}$. $\large e^{5}$. $1 + \log_{6} 5$. None of the above.

answered Aug 9 in Numerical Ability by Veenit (141 points) | 209 views

+1 vote

5 answers

11

UGCNET-June-2019-I-23
If $152$ is divided into four parts proportional at $3$, $4$, $5$ and $7$, then the smallest part is $29$ $26$ $25$ $24$

answered Aug 9 in Numerical Ability by rjRahul Singh (11 points) | 83 views

+2 votes

2 answers

12

GATE2018 EE: GA-4
For what values of $k$ given below is $\dfrac{(k + 2)^2}{(k - 3)}$ an integer? $4, 8, 18$ $4, 10, 16$ $4, 8, 28$ $8, 26, 28$

answered Aug 9 in Numerical Ability by Veenit (141 points) | 286 views

0 votes

2 answers

13

GATE2019 EC: GA-7
The bar graph in panel (a) shows the proportion of male and female illiterates in $2001$ and $2011.$ The proportions of males and females in $2001$ and $2011$ are given in Panel (b) and (c), respectively. The total population did not change during this period. The percentage increase in the total number of literates from $2001$ to $2011$ is ______. $30.43$ $33.43$ $34.43$ $35.43$

answered Jul 24 in Numerical Ability by Ram Swaroop Active (4k points) | 51 views

+1 vote

2 answers

14

GATE2019 EE: GA-6
How many integers are there between $100$ and $1000$ all of whose digits are even? $60$ $80$ $100$ $90$

answered Jul 17 in Numerical Ability by Ram Swaroop Active (4k points) | 72 views

+3 votes

3 answers

15

TIFR2010-Maths-A-3
The last digit of $2^{80}$ is.. 2 4 6 8

answered Jul 7 in Numerical Ability by tournesol (21 points) | 235 views

0 votes

1 answer

16

UGCNET-June-2019-I-35
Consider the following table that shows the number (in lakhs) of different sizes of LED television sets sold by a company over the last seven years from $2012$ to $2018$. Answer the question based on the data contained in the table: Sale of LED ... all the seven years the minimum? $22$- inch Television $24$- inch Television $49$- inch Television $40$- inch Television

answered Jul 6 in Numerical Ability by Ram Swaroop Active (4k points) | 14 views

0 votes

1 answer

17

UGCNET-June-2019-I-34
Consider the following table that shows the number (in lakhs) of different sizes of LED television sets sold by a company over the last seven years from $2012$ to $2018$. Answer the question based on the data contained in the table: Sale of LED Television sets (in ... sale of Television sets of size $49$-inches (in lakhs) over all the seven years? $912$ $896$ $879$ $869$

answered Jul 6 in Numerical Ability by Ram Swaroop Active (4k points) | 14 views

0 votes

1 answer

18

UGCNET-June-2019-I-33
Consider the following table that shows the number (in lakhs) of different sizes of LED television sets sold by a company over the last seven years from $2012$ to $2018$. Answer the question based on the data contained in the table: Sale of LED Television sets (in lakhs) of ... $2013$ and $2018$ $1,600,000$ $1,500,000$ $15,000,000$ $16,000,000$

answered Jul 6 in Numerical Ability by Ram Swaroop Active (4k points) | 14 views

0 votes

1 answer

19

UGCNET-June-2019-I-31
Consider the following table that shows the number (in lakhs) of different sizes of LED television sets sold by a company over the last seven years from $2012$ to $2018$. Answer the question based on the data contained in the table: Sale of LED Television sets (in lakhs) of ... $32$-inch LED Television sets in 2017 compared to that in 2013? $36 \%$ $56 \%$ $57 \%$ $64 \%$

answered Jul 6 in Numerical Ability by Ram Swaroop Active (4k points) | 19 views

0 votes

1 answer

20

UGCNET-June-2019-I-32
Consider the following table that shows the number (in lakhs) of different sizes of LED television sets sold by a company over the last seven years from $2012$ to $2018$. Answer the question based on the data contained in the table: Sale of LED Television ... seven years the maximum? $22$ - inch Television $24$ - inch Television $32$ - inch Television $49$ - inch Television

answered Jul 6 in Numerical Ability by Ram Swaroop Active (4k points) | 13 views

+1 vote

1 answer

21

UGCNET-June-2019-I-25
A sum of money doubles at compund interest in 6 years. In how many years it will become $16$ times? $16$ years $24$ years $48$ years $96$ years

answered Jul 4 in Numerical Ability by Satbir Boss (17.4k points) | 45 views

0 votes

1 answer

22

UGCNET-June-2019-I-27
Given below are two premises with four conclusions drawn from them. Which of the following conclusions could be validly drawn from the premises? Premises: No paper is pen Some paper are handmade Conclusions: All paper are handmade Some handmade are pen Some handmade are not pen All handmade are paper

answered Jul 4 in Numerical Ability by Satbir Boss (17.4k points) | 34 views

+1 vote

2 answers

23

UGCNET-June-2019-I-24
In a new budget, the price of petrol rose by $25\%$. By how much percent must a person reduce his consumption so that his expenditure on it does not increase? $10\%$ $15\%$ $20\%$ $25\%$

answered Jul 4 in Numerical Ability by Lakshman Patel RJIT Boss (45.8k points) | 48 views

+1 vote

2 answers

24

UGCNET-June-2019-I-22
For all integers $y>1, \: \langle y \rangle = 2y+(2y-1)+(2y-2) + \dots +1$. What is the value of $\langle 3 \rangle \times \langle 2 \rangle $? Where $\times$ is a multiplication operator? $116$ $210$ $263$ $478$

answered Jul 4 in Numerical Ability by Lakshman Patel RJIT Boss (45.8k points) | 57 views

+3 votes

2 answers

25

TIFR2015-A-9
Consider a square of side length $2$. We throw five points into the square. Consider the following statements: There will always be three points that lie on a straight line. There will always be a line connecting a pair of points such that two points lie on one side of the line and one ... above is true: $(i)$ only. $(ii)$ only. $(iii)$ only. $(ii)$ and $(iii)$. None of the above.

answered Jun 20 in Numerical Ability by Arjun Veteran (416k points) | 262 views

+1 vote

3 answers

26

TIFR2018-A-11
We are given a (possibly empty) set of objects. Each object in the set is colored either black or white, is shaped either circular or rectangular, and has a profile that is either fat or thin, Those properties obey the following principles: Each white object is also circular ... $(i) \text{ and } (iii)$ only None of the statements must be TRUE All of the statements must be TRUE

answered Jun 19 in Numerical Ability by Arjun Veteran (416k points) | 277 views

+6 votes

5 answers

27

TIFR2013-A-20
Consider a well functioning clock where the hour, minute and the seconds needles are exactly at zero. How much time later will the minutes needle be exactly one minute ahead ($1/60$ th of the circumference) of the hours needle and the seconds needle again exactly at ... multiple of $1/60$ th of the circumference. $144$ minutes $66$ minutes $96$ minutes $72$ minutes $132$ minutes

answered Jun 18 in Numerical Ability by Debargha Bhattacharj Junior (515 points) | 386 views

+9 votes

6 answers

28

GATE2014-2-GA-10
At what time between $6$ a. m. and $7$ a. m. will the minute hand and hour hand of a clock make an angle closest to $60°$? $6: 22$ a.m. $6: 27$ a.m. $6: 38$ a.m. $6: 45$ a.m.

answered Jun 18 in Numerical Ability by Debargha Bhattacharj Junior (515 points) | 2.6k views

+4 votes

2 answers

29

TIFR2013-A-5
The late painter Maqbool Fida Husain once coloured the surface of a huge hollow steel sphere, of radius $1$ metre, using just two colours, Red and Blue. As was his style however, both the red and blue areas were a bunch of highly irregular disconnected regions. The late ... $11 sq. metres$; None of the above.

answered Jun 17 in Numerical Ability by srestha Veteran (113k points) | 741 views

+11 votes

5 answers

30

GATE2018-GA-10
A six sided unbiased die with four green faces and two red faces is rolled seven times. Which of the following combinations is the most likely outcome of the experiment? Three green faces and four red faces. Four green faces and three red faces. Five green faces and two red faces. Six green faces and one red face

answered Jun 17 in Numerical Ability by Debargha Bhattacharj Junior (515 points) | 4.3k views

+5 votes

2 answers

31

TIFR2015-A-15
Let $A$ and $B$ be non-empty disjoint sets of real numbers. Suppose that the average of the numbers in the first set is $\mu_{A}$ and the average of the numbers in the second set is $\mu_{B}$; let the corresponding variances be $v_{A}$ and $v_{B}$ ... $p.v_{A}+ (1 - p). v_{B} + (\mu_{A}- \mu_{B})^{2}$

answered Jun 16 in Numerical Ability by Arjun Veteran (416k points) | 262 views

+1 vote

1 answer

32

TIFR2019-A-10
Avni and Badal alternately choose numbers from the set $\{1,2,3,4,5,6,7,8,9\}$ without replacement (starting with Avni). The first person to choose numbers of which any $3$ sum to $15$ wins the game (for example, Avni wins if she chooses ... a winning strategy Both of them have a winning strategy Neither of them has a winning strategy The Player that picks $9$ has a winning strategy

answered Jun 16 in Numerical Ability by Arjun Veteran (416k points) | 238 views

0 votes

2 answers

33

GATE2010 TF: GA-5
Consider the function $f(x)=\max(7-x,x+3).$ In which range does $f$ take its minimum value$?$ $-6\leq x<-2$ $-2\leq x<2$ $2\leq x<6$ $6\leq x<10$

answered Jun 14 in Numerical Ability by Lakshman Patel RJIT Boss (45.8k points) | 64 views

+2 votes

2 answers

34

TIFR2019-B-14
Let $m$ and $n$ be two positive integers. Which of the following is NOT always true? If $m$ and $n$ are co-prime, there exist integers $a$ and $b$ such that $am + bn=1$ $m^{n-1} \equiv 1 (\text{ mod } n)$ ... $m+1$ is a factor of $m^{n(n+1)}-1$ If $2^n -1$ is prime, then $n$ is prime

answered Jun 10 in Numerical Ability by Lakshman Patel RJIT Boss (45.8k points) | 244 views

+5 votes

2 answers

35

TIFR2011-A-13
If $z=\dfrac{\sqrt{3}-i}{2}$ and $\large(z^{95}+ i^{67})^{97}= z^{n}$, then the smallest value of $n$ is? $1$ $10$ $11$ $12$ None of the above.

answered Jun 10 in Numerical Ability by Arkaprava Active (2.1k points) | 285 views

0 votes

1 answer

36

Self doubt on probability
An element is to be inserted in an array and the probability that it has been entered correctly is 0.9. Find the probability that the sorting algorithm worked correctly. How to solve this type of questions?

asked Jun 5 in Numerical Ability by Indranil Pradhan (47 points) | 74 views

0 votes

2 answers

37

Profit and loss Self doubt
The marked price of a table is Rs. 1200, which is 20% above the cost price. It is sold at a discount of 10% on the marked price. Find the profit percent. (a) 10% (b) 8% (c) 7.5% (d) 6% What approach can I use for these type of questions?

asked Jun 4 in Numerical Ability by Gitika Babbar (147 points) | 68 views

0 votes

1 answer

38

Self doubt in percentage and mixtures
In a mixture of 80 litres of milk and water, 25% of the mixture is milk. How much water should be added to the mixture so that milk becomes 20% of the mixture? (a) 20 litres (b) 15 litres (c) 25 litres (d) None of these

asked Jun 3 in Numerical Ability by Gitika Babbar (147 points) | 33 views

0 votes

1 answer

39

Self doubt in percentage
In Medical certificate, by mistake a candidate gave his height as 25% more than normal. In the interview panel,he clarified his height was 5 feet 5inches. Find the percentage correction made by the candidate from his stated height to his actual height. 20 28.56 25 None of these

asked Jun 3 in Numerical Ability by Gitika Babbar (147 points) | 37 views

+1 vote

0 answers

40

Aptitude Self Doubt
If altitude of equilateral triangle is given, then what is formula to find area of it??

asked Jun 2 in Numerical Ability by srestha Veteran (113k points) | 68 views

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