Aptitude and Reasoning Questions

Q:

Find the next number in the given number series?

2, 3, 7, 16, 32, ?

A) 49 B) 52
C) 54 D) 57
 
Answer & Explanation Answer: D) 57

Explanation:

The given number series is 2, 3, 7, 16, 32, ?

 

22 + 12 = 33 + 22 = 77 + 32 = 1616 + 42 = 3232  + 52 = 57

Hence, the next number in the given number series is 57.

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Filed Under: Number Series
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11 68712
Q:

An air conditioner can cool the hall in 40 miutes while another takes 45 minutes to cool under similar conditions. If both air conditioners are switched on at same instance then how long will it take to cool the room approximately ?

A) 18 minutes B) 19 minutes
C) 22 minutes D) 24 minutes
 
Answer & Explanation Answer: C) 22 minutes

Explanation:

Let the two conditioners be A and B

 

'A' cools at 40min

 

'B' at 45min

 

Together = (a x b)/(a + b)

= (45 x 40)/(45 + 40)

= 45 x 40/85

= 21.1764

= 22 min (approx).

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Filed Under: Time and Work
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94 68686
Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) ABDG B) PQSV
C) JKMQ D) NOQT
 
Answer & Explanation Answer: C) JKMQ

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

5 68587
Q:

Directions: What value should come in place of question mark (?) in the following question?

150% of 460+24% of 650=?

A) 854 B) 846
C) 895 D) 825
 
Answer & Explanation Answer: B) 846

Explanation:

(150 x 460)/100 + (24 x 650)/100

= 690+156

= 846

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Filed Under: Simplification
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0 68541
Q:

If Z = 52 and ACT = 48, then BAT will be equal to

A) 39 B) 41
C) 44 D) 46
 
Answer & Explanation Answer: D) 46

Explanation:

In the given code, A = 2, B = 4, C = 6,.... , Z = 52.

So, ACT = 2 + 6 + 40 = 48 and

BAT = 4 + 2 + 40 = 46

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Filed Under: Coding and Decoding

938 68525
Q:

Find the unit place digit in the expression (159)144 + (114)123 - (110)510 + (213)25

 

A) 3 B) 4
C) 7 D) 8
 
Answer & Explanation Answer: D) 8

Explanation:
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Filed Under: Simplification
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1 68518
Q:

What will be the day of the week 15th August, 2010?

A) Sunday B) Saturday
C) Wednesday D) Monday
 
Answer & Explanation Answer: A) Sunday

Explanation:

15th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010)

 

Odd days in 1600 years = 0

 

Odd days in 400 years = 0

 

9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 = 4 odd days.

 

Jan. Feb. Mar.  Apr.  May.  Jun.  Jul.  Aug.

(31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days = (32 weeks + 3 days) = 3 odd days.

  

Total number of odd days = (0 + 0 + 4 + 3) = 7 =  0 odd days.

 

Given day is Sunday

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Filed Under: Calendar

550 68505
Q:

What should come in place of question mark (?) in the following number series?

38, 195, ?, 4905, 24530, 122655

A) 980 B) 885
C) 824 D) 1021
 
Answer & Explanation Answer: A) 980

Explanation:

The given series follows the pattern that,

 

×5+5,   ×5+5,   ×5+5,   ×5+5,   ×5+5

 

38 x 5 + 5  = 195

 

195 x 5 + 5 = 980

 

980 x 5 + 5 = 4905

 

4905 x 5 + 5 = 24530

 

24530 x 5 + 5 = 122655

 

So the missing number is 980 .

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7 68429