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Recent questions tagged numberseries
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ISI2015DCG15
The smallest integer $n$ for which $1+2+2^2+2^3+2^4+ \cdots +2^n$ exceeds $9999$, given that $\log_{10} 2=0.30103$, is $12$ $13$ $14$ None of these
asked
Sep 18
in
Numerical Ability
by
gatecse
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16.8k
points)

20
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isi2015dcg
numericalability
numbersystem
numberseries
summation
+1
vote
3
answers
2
GATE2010 TF: GA7
Consider the series $\frac{1}{2}+\frac{1}{3}\frac{1}{4}+\frac{1}{8}+\frac{1}{9}\frac{1}{16}+\frac{1}{32}+\frac{1}{27}\frac{1}{64}+\ldots.$ The sum of the infinite series above is$:$ $\infty$ $\frac{5}{6}$ $\frac{1}{2}$ $0$
asked
May 14
in
Numerical Ability
by
Lakshman Patel RJIT
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54.7k
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101
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generalaptitude
numericalability
gate2010tf
numberseries
0
votes
1
answer
3
MadeEasy Workbook: General Aptitude  Number Series
Let $T$ be the set of integers $\{3,11,19,27, ..... , 451, 459, 467\}$ and $S$ be a subset of $T$ such that the sum of no two elements of $S$ is $470$. The maximum possible number of elements in $S$ is ? $31$ $28$ $29$ $30$ Answer is given as c. 29. But as per my calculations the answer has to be d.30. Let me know if my answer is correct.
asked
Apr 29, 2018
in
Numerical Ability
by
NithinBiliya
(
25
points)

191
views
generalaptitude
numericalability
numberseries
madeeasybooklet
0
votes
2
answers
4
ISI201406
The sum of an infinite geometric series of real numbers is $14$, and the sum of the cubes of the terms of this series is $392$. Then the first term of the series is $14$ $10$ $7$ $5$
asked
Mar 17, 2018
in
Mathematical Logic
by
jjayantamahata
Active
(
1.5k
points)

109
views
numberseries
+3
votes
1
answer
5
GATE2018 EC: GA4
What is the value of $1 + \dfrac{1}{4} + \dfrac{1}{16} + \dfrac{1}{64} + \dfrac{1}{256} + .............?$ $2$ $\dfrac{7}{4}$ $\dfrac{3}{2}$ $\dfrac{4}{3}$
asked
Feb 21, 2018
in
Numerical Ability
by
Lakshman Patel RJIT
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54.7k
points)

265
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gate2018ec
generalaptitude
numericalability
numberseries
geometricseries
0
votes
1
answer
6
GATE2018 CE1: GA9
Consider a sequence of numbers $a_1, a_2, a_3, \dots , a_n$ where $a_n = \frac{1}{n}\frac{1}{n+2}$, for each integer $n>0$. Whart is the sum of the first 50 terms? $\left( 1+ \frac{1}{2} \right)  \frac{1}{50}$ $\left( 1+ \frac{1}{2} \right) + \frac{1}{50}$ ... $1  \left( \frac{1}{51} + \frac{1}{52} \right)$
asked
Feb 17, 2018
in
Numerical Ability
by
gatecse
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(
16.8k
points)

73
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gate2018ce1
generalaptitude
numericalability
numberseries
+1
vote
1
answer
7
addition
value of 1/3 + 1/15 + 1/35 +............................+1/9999 a)100/101 b)50/101 c)100/51 d)50/51
asked
Sep 12, 2017
in
Numerical Ability
by
A_i_$_h
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(
10.1k
points)

437
views
numericalability
summation
numberseries
+1
vote
2
answers
8
Next number in series
196 : 169 : 81 : ? (a) 64 (b) 72 (c) 100 (d) None Is a option correct here or do we need to look at the the square root of them for some other relation 14,13,9 .If none was not there i would have selected a only.
asked
Jul 20, 2017
in
Numerical Ability
by
rahul sharma 5
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(
25.3k
points)

312
views
numberseries
+1
vote
3
answers
9
Next number in series
Find next number in series? 15,10,5,150,16,12,4,192,20,15,5,....?
asked
Jul 20, 2017
in
Numerical Ability
by
rahul sharma 5
Boss
(
25.3k
points)

367
views
numberseries
0
votes
0
answers
10
MadeEasy Subject Test: General Aptitude  Number Series
asked
Jan 11, 2017
in
Numerical Ability
by
Arnabi
Loyal
(
7.9k
points)

116
views
madeeasytestseries
generalaptitude
numberseries
+1
vote
0
answers
11
Series expansion
If m and n are whole numbers and $m^{n} = 125$ then the value of $(m5)^{n+1}=?$
asked
Nov 11, 2016
in
Linear Algebra
by
Rakesh K
Active
(
1.8k
points)

117
views
engineeringmathematics
numberseries
+3
votes
2
answers
12
What will be the next Number?
0, 11, 36, 81, ____?
asked
Apr 19, 2016
in
Verbal Ability
by
shivani2010
Junior
(
545
points)

234
views
numberseries
+3
votes
1
answer
13
GATE2014 EC2: GA5
Fill in the missing number in the series. $2$ $3$ $6$ $15$ ___ $157.5$ $630$
asked
Mar 18, 2016
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

325
views
gate2014ec2
numberseries
numericalability
numericalanswers
+5
votes
3
answers
14
GATE2014 EC1: GA5
What is the next number in the series? $12$ $35$ $81$ $173$ $357$ _______.
asked
Mar 18, 2016
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

441
views
gate2014ec1
numberseries
numericalability
numericalanswers
+4
votes
3
answers
15
GATE2014 EC3: GA6
Find the next term in the sequence: $7G, 11K, 13M$, _________. $15Q$ $17Q$ $15P$ $17P$
asked
Mar 8, 2016
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

391
views
gate2014ec3
numberseries
logicalreasoning
numericalability
+7
votes
2
answers
16
GATE2014 EC3: GA4
The next term in the series $81, 54, 36, 24,\dots $ is_________.
asked
Mar 8, 2016
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

893
views
gate2014ec3
numberseries
numericalability
numericalanswers
+5
votes
4
answers
17
GATE2013 EE: GA10
Find the sum to $'n'$ terms of the series $10+84+734+\dots$ $\frac{9(9^n+1)}{10} +1$ $\frac{9(9^n1)}{8} +1$ $\frac{9(9^n1)}{8} +n$ $\frac{9(9^n1)}{8} +n^2$
asked
Feb 16, 2016
in
Numerical Ability
by
Akash Kanase
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(
41.5k
points)

1.2k
views
gate2013ee
numericalability
numberseries
+4
votes
2
answers
18
TIFR2015A3
Let $z < 1$. Define $M_{n}(z)= \sum_{i=1}^{10} z^{10^{n}(i  1)}?$ what is $\prod_{i=0}^{\infty} M_{i}(z)= M_{0}(z)\times M_{1}(z) \times M_{2}(z) \times ...?$ Can't be determined. $1/ (1  z)$ $1/ (1 + z)$ $1  z^{9}$ None of the above.
asked
Dec 2, 2015
in
Numerical Ability
by
makhdoom ghaya
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(
30.1k
points)

237
views
tifr2015
numericalability
numericalcomputation
numberseries
+4
votes
1
answer
19
TIFR2014A7
Consider a sequence of nonnegative numbers ${x_{n} : n = 1, 2, . . .}$. Which of the following statements cannot be true? $\sum ^{\infty }_{n=1} x_{n}= \infty $ and $\sum ^{\infty }_{n=1} x_{n}^{2}= \infty$. $\sum ^{\infty }_{n=1} x_{n}= \infty $ ... $\sum ^{\infty }_{n=1} x_{n} < \infty $ and $\sum ^{\infty }_{n=1} x_{n}^{2}= \infty$.
asked
Nov 9, 2015
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
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195
views
tifr2014
numericalability
numberseries
+3
votes
2
answers
20
TIFR2013A15
Let $\DeclareMathOperator{S}{sgn} \S (x)= \begin{cases} +1 & \text{if } x \geq 0 \\ 1 & \text{if } x < 0 \end{cases}$ What is the value of the following summation? $\sum_{i=0}^{50} \S \left ( (2i  1) (2i  3) \dots (2i  99) \right)$ $0$ $1$ $+1$ $25$ $50$
asked
Nov 4, 2015
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

183
views
tifr2013
numericalability
numberseries
+7
votes
1
answer
21
TIFR2013A8
Find the sum of the infinite series $\dfrac{1}{1\times 3 \times 5} + \dfrac{1}{3\times 5\times 7} + \dfrac{1}{5\times 7 \times 9} + \dfrac{1}{7\times 9 \times 11} + ......$ $\;\;\infty $ $\left(\dfrac{1}{2}\right)$ $\left(\dfrac{1}{6}\right)$ $\left(\dfrac{1}{12}\right)$ $\left(\dfrac{1}{14}\right)$
asked
Nov 4, 2015
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

306
views
tifr2013
numericalability
numberseries
+5
votes
1
answer
22
TIFR2011A8
The sum of the first $n$ terms of the series $1, 11, 111, 1111,\dots,$ is. $\frac{1}{81}\left ( 10^{n+1}9n10 \right )$ $\frac{1}{81}\left ( 10^{n}9n \right )$ $\frac{1}{9}\left ( 10^{n+1}1\right )$ $\frac{1}{9}\left ( 10^{n+1}n10^{n}\right )$ None of the above.
asked
Oct 17, 2015
in
Numerical Ability
by
makhdoom ghaya
Boss
(
30.1k
points)

265
views
tifr2011
numericalability
numberseries
+2
votes
2
answers
23
TIFR2010MathsA11
The series $\sum ^{\infty }_{n=1}\frac{(1)^{n+1}}{\sqrt{n}}$ Converges but not absolutely. Converges absolutely. Diverges. None of the above.
asked
Oct 11, 2015
in
Numerical Ability
by
Arjun
Veteran
(
424k
points)

149
views
tifrmaths2010
numberseries
convergence
+2
votes
2
answers
24
TIFR2010MathsA4
The sum of the series $\frac{1}{1 \cdot 2}+ \frac{1}{2 \cdot 3}+ \frac{1}{3 \cdot 4} + \dots +\frac{1}{100 \cdot 101}$ $\frac{99}{101}$ $\frac{98}{101}$ $\frac{99}{100}$ None of the above.
asked
Oct 11, 2015
in
Set Theory & Algebra
by
makhdoom ghaya
Boss
(
30.1k
points)

275
views
tifrmaths2010
numberseries
+1
vote
1
answer
25
Series Convergence
I'm having hard time understanding how following series converges ; 1 + 2/5 + 3/5^2 + 4/5^3 + 5/5^4 + ............ infinity
asked
Aug 22, 2015
in
Linear Algebra
by
vishal8492
Junior
(
611
points)

148
views
numberseries
+7
votes
2
answers
26
GATE20143GA4
Which number does not belong in the series below? $\qquad2, 5, 10, 17, 26, 37, 50, 64$ $17$ $37$ $64$ $26$
asked
Sep 28, 2014
in
Numerical Ability
by
jothee
Veteran
(
105k
points)

875
views
gate20143
numericalability
numberseries
easy
+13
votes
2
answers
27
GATE20142GA5
The value of $\sqrt{12+\sqrt{12+\sqrt{12+\dots}}} $is $3.464$ $3.932$ $4.000$ $4.444$
asked
Sep 28, 2014
in
Numerical Ability
by
jothee
Veteran
(
105k
points)

654
views
gate20142
numericalability
easy
numberseries
+14
votes
1
answer
28
GATE201361
Find the sum of the expression $\frac{1}{\sqrt{1}+\sqrt{2}}+\frac{1}{\sqrt{2}+\sqrt{3}}+\frac{1}{\sqrt{3}+\sqrt{4}}+............+\frac{1}{\sqrt{80}+\sqrt{81}}$ $7$ $8$ $9$ $10$
asked
Sep 24, 2014
in
Numerical Ability
by
Arjun
Veteran
(
424k
points)

1.6k
views
gate2013
numericalability
normal
numberseries
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