Aptitude and Reasoning Questions

Q:

Mark the odd man out of the series?

1 6 27 124 650

A) 27 B) 124
C) 6 D) 650
 
Answer & Explanation Answer: D) 650

Explanation:

The given series is 1 6 27 124 650

1

1 + 2 x 2 = 6

6 + 3 x 3 = 27

27 + 4 x 4 = 124

124 + 5 x 5 = 645 (NOT 650)

 

 

Hence, the odd man in the given number series is 650.

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Filed Under: Odd Man Out
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11 56332
Q:

Which number will complete the series?

6 , 8 , 17 , 19 , 28 , 30 , ?

A) 32 B) 37
C) 38 D) 39
 
Answer & Explanation Answer: D) 39

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

3 56281
Q:

(8)23 = ?

 

A) √4 B) 2
C) 4 D) 64
 
Answer & Explanation Answer: C) 4

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 56246
Q:

sin 30°1 + cos30° + 1 + cos30°sin30° = ?

 

 

A) 4 B) 3
C) 1 D) 2
 
Answer & Explanation Answer: A) 4

Explanation:
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Exam Prep: Bank Exams

0 55992
Q:

The ratio of two numbers is 3 : 4 and their H.C.F is 4. Their L.C.M is 

A) 12 B) 16
C) 24 D) 48
 
Answer & Explanation Answer: D) 48

Explanation:

Let the numbers be  3x and 4x . Then their H.C.F = x. So, x=4

 Therefore, The numbers are 12 and 16

 L.C.M of 12 and 16 = 48

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Filed Under: HCF and LCM

127 55956
Q:

If x2 = 252 - 152, then find the value of x?

 

A) 40 B) 50
C) 20 D) 25
 
Answer & Explanation Answer: C) 20

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 55951
Q:

Use continuity to evaluate the limit.

limx128+x8+x

 

A) 1 B) 2
C) 4 D) 0
 
Answer & Explanation Answer: A) 1

Explanation:

Since, we have that,

The numerator and denominator is (8+x), which is a polynomial is continuous for all the real numbers i.e. for all x belonging to .

Thus, the limit exists and is given by,

limx128+x8+x = 8+128+12= 1.

 

 

 

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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

0 55935
Q:

Choose the missing terms in the given series from the four alternatives given below.

C, E, G, J, M, Q, ?

A) T B) U
C) P D) V
 
Answer & Explanation Answer: B) U

Explanation:

The letters move 2, 2, 3, 3, 4, 4, ... steps forward.

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Filed Under: Number Series
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10 55924