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121

series
$563 \; 647 \; 479 \; 815$_______ what is the next number in series

shivanisrivarshini asked in Logical Reasoning Aug 8, 2016

by shivanisrivarshini

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122

series
$3 \; 8 \; 13 \; 24 \; 41$ ____ next number in series is ?

shivanisrivarshini asked in Logical Reasoning Aug 8, 2016

by shivanisrivarshini

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2 answers

123

Geometric progression
The series S is in G.P with common ratio r. A new series is formed whose nth term is sum of (n+1)th term and nth term of series S . what is common ratio of the new series ? 1) r-1 2)r+1 3)r 4) The new series is not in G.P. here G.P Is geometric progression

minal asked in Quantitative Aptitude Jun 6, 2016

by minal

2.3k points

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124

CAT 2003 | Question: 2-70
Consider the sets $T_n = \{n, n + 1, n + 2, n + 3, n + 4\}$, where $n = 1, 2, 3,\dots, 96.$ How many of these sets contain $6$ or any integral multiple thereof (i.e., any one of the numbers $6, 12, 18, \dots)?$ $80$ $81$ $82$ $83$

go_editor asked in Quantitative Aptitude May 5, 2016

13.6k points

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125

CAT 2007 | Question: 05
Directions for the below question: Let $S$ be the set of all pairs $(i, j)$ where $ 1 \leq i \leq j < n$ and $n \geq 4$. Any two distinct number of $S$ are called friends' if they have one constituent of the pairs in common and enemies' otherwise. For example, if $n=4$ ... $2n-6$ $\frac{1}{2} n(n - 3)$ $n-2$ $\frac{1}{2} (n^2 - 7n + 16)$

go_editor asked in Quantitative Aptitude May 3, 2016

13.6k points

385 views

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126

CAT 2001 | Question: 30
For a Fibonacci sequence, from the third term onwards, each term in the sequence is the sum of the previous two terms in that sequence. If the difference in squares of seventh and sixth terms of this sequence is $517,$ what is the tenth term of this sequence? $147$ $76$ $123$ Cannot be determined

go_editor asked in Quantitative Aptitude Mar 31, 2016

13.6k points

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127

CAT 2000 | Question: 59
What is the value of the following expression? $\frac{1}{2^2 -1} + \frac{1}{4^2 -1} + \frac{1}{6^2 -1} + \dots + \frac{1}{20^2 -1}$ $\frac{9}{19}$ $\frac{10}{19}$ $\frac{10}{21}$ $\frac{11}{21}$

go_editor asked in Quantitative Aptitude Mar 28, 2016

13.6k points

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128

CAT 2000 | Question: 58
If $a_1 = 1$ and $a_{n+1} = 2a_{n + 5}, n = 1, 2, \dots ,$ then $a_{100}$ is equal to $(5 × 2^99 – 6)$ $(5 × 2^99 + 6)$ $(6 × 2^99 + 5)$ $(6 × 2^99 – 5)$

go_editor asked in Quantitative Aptitude Mar 28, 2016

13.6k points

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129

CAT 2002 | Question: 77
A student finds the sum $1 + 2 + 3 + \dots $ as his patience runs out. He found the sum as $575.$ When the teacher declared the result wrong, the student realized that he missed a number. What was the number the student missed? $16$ $18$ $14$ $20$

go_editor asked in Quantitative Aptitude Mar 2, 2016

13.6k points

201 views

1 vote

1 answer

130

CAT 2003 | Question: 1-128
The $288$-th term of the series $a,b,b,c,c,c,d,d,d,d,e,e,e,e,e,f,f,f,f,f,f, \dots$ is $u$ $v$ $w$ $x$

go_editor asked in Quantitative Aptitude Feb 8, 2016

13.6k points

388 views

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131

CAT 2014 | Question: 47
Direction for questions: Answer the questions based on the following information. A series $S_{1}$ of five positive integers is such that the third term is half the first term and the fifth term is $20$ more than the first term. In series $S_{2}$, the $n$th ... , is an arithmetic progression with a common difference of $30$. First term of $S_{1}$ is $80$ $90$ $100$ $120$

makhdoom ghaya asked in Quantitative Aptitude Jan 19, 2016

by makhdoom ghaya

8.0k points

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1 answer

132

CAT 2014 | Question: 45
Let $a_{n+1}= 2 a_{n}+1 ({n}=0, 1, 2,\dots)$ and $a_{0}=0$. Then $a_{10}$ nearest to. $1023$ $2047$ $4095$ $8195$

makhdoom ghaya asked in Quantitative Aptitude Jan 17, 2016

by makhdoom ghaya

8.0k points

275 views

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1 answer

133

CAT 2004 | Question: 66
Consider the sequence of the numbers $a_1, a_2, a_3, \dots$ to infinity where $a_1 = 81.33$ and $a_2 = -19$, and $a_j = a_{j-1} - a_{j-2}$ for $j \geq 3$. What is the sum of the first $6002$ terms of this sequence? $-100.33$ $-30.00$ $62.33$ $119.33$

go_editor asked in Quantitative Aptitude Jan 13, 2016

13.6k points

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134

CAT 2005 | Question: 14
If $a_1 =1$ and $a_{n+1}-3a_n +2 = 4n$ for every positive integer n then $a_{100}$ equals $3^{99} - 200$ $3^{99} + 200$ $3^{100} - 200$ $3^{100} + 200$

go_editor asked in Quantitative Aptitude Dec 29, 2015

13.6k points

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1 answer

135

CAT 2006 | Question: 55
Consider the sequence where the $n^{\text{th}}$ term $t_n = \frac{n}{n+2}, n=1, 2, \dots.$ The value of $t_3 \times t_4 \times t_5 \times \dots \times t_{53}$ equals: $2/495$ $2/477$ $12/55$ $1/1485$ $1/2970$

go_editor asked in Quantitative Aptitude Dec 28, 2015

13.6k points

351 views

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1 answer

136

CAT 2007 | Question: 04
Directions for the below question: Let $S$ be the set of all pairs $(i, j)$ where $ 1 \leq i \leq j < n$ and $n \geq 4$. Any two distinct number of $S$ are called friends' if they have one constituent of the pairs in common and enemies' otherwise. For example, if $n=4$ ... $2n-7$ $\frac{1}{2} (n^2 - 5n +6)$ $\frac{1}{2} (n^2 - 7n + 14)$

go_editor asked in Quantitative Aptitude Dec 6, 2015

13.6k points

446 views

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2 answers

137

CAT 2008 | Question: 12
The number of common terms in the two sequences $17, 21, 25,\dots,417$ and $16, 21 26,\dots,466$ is $78$ $19$ $20$ $27$ $22$

go_editor asked in Quantitative Aptitude Nov 28, 2015

13.6k points

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138

CAT 2008 | Question: 08
Find the sum $\sqrt{1+ \frac{1}{1^2} + \frac{1}{2^2} } + \sqrt{1+ \frac{1}{2^2} + \frac{1}{3^2} } + \dots + \sqrt{1+ \frac{1}{2007^2} + \frac{1}{2008^2} }$ $2008 - \frac{1}{2008}$ $2007 - \frac{1}{2007}$ $2007 - \frac{1}{2008}$ $2008 - \frac{1}{2007}$ $2008 - \frac{1}{2009}$

go_editor asked in Quantitative Aptitude Nov 28, 2015

13.6k points

359 views

4 votes

2 answers

139

What is the missing letter in this series:
What is the missing Letter in this series: a a b b ? c a b c d e What is the missing letter in this series: c c d ? e f g g h b c d e f What is the missing letter in this series: a z b ? c x b c w x y

makhdoom ghaya asked in Logical Reasoning Aug 13, 2015

by makhdoom ghaya

8.0k points

6.4k views

3 votes

1 answer

140

the positions of the elements
$\text{R @ 2 9 T V A Y 5 © # J 1 P 8 Q \$ E 3}$ $\text{* H % 6 W 4 I δ U Z}$ If the positions of the last eighteen elements in the above arrangement are reserved, which of te following will be the seventeenth from the left end? $\text{E}$ $\text{P}$ $\text{W}$ $6$ None of these

admin asked in Logical Reasoning Apr 27, 2015

by admin

3.7k points

542 views

3 votes

2 answers

141

How many such numbers
$\text{R @ 2 9 T V A Y 5 © # J 1 P 8 Q \$ E 3}$ $\text{* H % 6 W 4 I δ U Z}$ How many such numbers are there in the above arrangement, each of which is immediately prepared by a consonant and immediately followed by a symbol? One Two Three Four More than four

admin asked in Logical Reasoning Apr 27, 2015

by admin

3.7k points

689 views

3 votes

3 answers

142

Which of the following is
$\text{R @ 2 9 T V A Y 5 © # J 1 P 8 Q \$ E 3}$ $\text{* H % 6 W 4 I δ U Z}$ Which of the following is the fifth to the right of the nineteenth element from the right end? $\text{P}$ $\text{V}$ $\text{W}$ $\text{8}$ None of these

admin asked in Logical Reasoning Apr 27, 2015

by admin

3.7k points

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2 votes

4 answers

143

Four of the following five are alike
$\text{R @ 2 9 T V A Y 5 © # J 1 P 8 Q \$ E 3 * H % 6 W 4 I δ U Z}$ Four of the following five are alike in a certain way based on their positions in the above arrangement and so form a group. Which is the one that does not belong to that group? $\text{J P ©}$ $\text{E Q *}$ $\text{W I %}$ $\text{9 V @}$ $\text{1 # δ}$

admin asked in Logical Reasoning Apr 27, 2015

by admin

3.7k points

3.1k views

3 votes

1 answer

144

Little confusion in reading the statement Required Clue here

sandeep kumar verma asked in Logical Reasoning Apr 25, 2015

by sandeep kumar verma

118 points

755 views

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Recent questions tagged sequences&series