Aptitude and Reasoning Questions

Q:

L.C.M of two prime numbers x and y (x>y) is 161. The value of 3y-x is :

A) -2 B) -1
C) 1 D) 2
 
Answer & Explanation Answer: A) -2

Explanation:

 H. C. F of two prime numbers is 1.  Product of numbers = 1 x 161 = 161.

 Let the numbers be a and b . Then , ab= 161.

 Now, co-primes with  product 161 are (1, 161) and (7, 23).

 Since x and y are prime numbers and x >y , we have x=23 and y=7.

 Therefore,  3y-x = (3 x 7)-23 = -2

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Filed Under: HCF and LCM

119 50698
Q:

I. A, B, C, D, E and F are six members of a family. 

II. One couple has parents and their children in the family. 

III. A is the son of C and E is the daughter of A. 

IV. D is the daughter of F who is the mother of E. 

 What relationship do D and E bear to each other ? 

A) Sister and Brother B) Mother and Son
C) Grandmother and Grand daughter D) Sisters
 
Answer & Explanation Answer: D) Sisters

Explanation:

E is the daughter of A and F is the mother of E. So, A is the father of E and hence the husband of F. Now, 

D is the daughter of F. So, D and E are the daughters of A and F Also. A is the son of C. 

Now, only B remains. Thus, B and C are the parents of A. 

Clearly. D and E are sisters 

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Filed Under: Blood Relations

1 50688
Q:

Consider the following information and answer questions based on it.

 

Six cars S, T, V, W, X and Y are parked in a parking lot, in a random order, from left to right, such that -

 

A. T is parked on the extreme right.

B. V is parked to the immediate right of Y and is one car away from W.

C. X is to the immediate left of T and is three cars away from S.

 

Which car is parked to the immediate left of X?

A) V B) Y
C) W D) T
 
Answer & Explanation Answer: A) V

Explanation:
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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

2 50648
Q:

Select the alternative in which the specified components of the key figure (X) are found.

             291484720701.png image

2911484720717.png image

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

Explanation:
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Filed Under: Image Analysis
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank PO

24 50645
Q:

If "A" means "plus", "B" means "divide", "C" means "multiply" and "D" means "minus", then

162 B 27 C 5 A 8 D 35 = ?

A) 0 B) 3
C) 1 D) 2
 
Answer & Explanation Answer: B) 3

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 50640
Q:

Find the odd man out of the following number series?

1/2, 1, 3/2, 6, 5/2, 3

A) 1 B) 6
C) 5/2 D) 3/2
 
Answer & Explanation Answer: B) 6

Explanation:

The given series is 1/2, 1, 3/2, 6, 5/2, 3

1/2

1/2 + 1/2 = 1

1 + 1/2 = 3/2

3/2 + 1/2 = 2 (Not 6)

2 + 1/2 = 5/2

5/2 + 1/2 = 3

 

Hence, the odd man in the given number series is 6.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

1 50571
Q:

Determine the value of m for which 4x + x6 + m24 is a perfect square.

 

A) 1/24 B) 1/12
C) 12 D) 24
 
Answer & Explanation Answer: B) 1/12

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 50554
Q:

In the following question, select the missing number from the given series.

 

23, 23, 46, 138, 552, ?

 

A) 2760 B) 3040
C) 2560 D) 2420
 
Answer & Explanation Answer: A) 2760

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

1 50513