Aptitude and Reasoning Questions

Q:

Find the odd man out?

61, 66, 83, 121, 185

A) 185 B) 121
C) 83 D) 66
 
Answer & Explanation Answer: B) 121

Explanation:

Given number series is 61, 66, 83, 121, 185

Here the given series follows a pattern that,

 

6161 + 22 + 1 = 6666 + 42 + 1 = 8383 + 62 + 1 = 120 (not 121)120 + 82 + 1 = 185

 

 

Hence, the odd man in the given series is 121.

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Filed Under: Odd Man Out
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3 46686
Q:

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

A) 20% B) 30%
C) 40% D) 50%
 
Answer & Explanation Answer: D) 50%

Explanation:

Let original length = x and original breadth = y.

Original area = xy. 

New length = x/2 and New breadth=3y 

New area = 32xy 

Therefore,  Increase in area = New area-original area = 32xy-xy=12xy 

 

Therefore,  Increase % = increase in area original area*100=12xyxy*100=50 %

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Filed Under: Area
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47 46683
Q:

A can contains a mixture of two liquids A and B in the ratio  7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?

A) 10 B) 20
C) 21 D) 25
 
Answer & Explanation Answer: C) 21

Explanation:

Suppose the can initially contains 7x and 5x litres of mixtures A and B respectively

 

Quantity of A in mixture left =7x-712×9=7x-214 litres.

 

Quantity of B in mixture left =  5x-512×9=5x-154litres.

 

7x-2145x-154+9=79

 

28x-2120x+21=79

 

x=3

 So, the can contained 21 litres of A.

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Filed Under: Alligation or Mixture

272 46644
Q:

Arrange the given words in the sequence in which they occur in the dictionary.

1. Flesh

2. Flexible

3. Flaw

4. Flick

5. Fleet

A) 35124 B) 45123
C) 12453 D) 24513
 
Answer & Explanation Answer: A) 35124

Explanation:
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Filed Under: Logical Sequence of Words
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Q:

A parallelogram has sides 30m and 14m and one of its diagonals is 40m long. Then its area is

A) 136 B) 236
C) 336 D) 436
 
Answer & Explanation Answer: C) 336

Explanation:

let ABCD be the given parallelogram 

area of parallelogram ABCD = 2 x (area of triangle ABC) 

now a = 30m, b = 14m and c = 40m

 s=1/2 x (30+14+40) = 42 

 

Area of triangle ABC = ss-as-bs-c  

 

= 4212282= 168sq m 

area of parallelogram ABCD = 2 x 168 = 336 sq m

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Filed Under: Area
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103 46617
Q:

Find the missing (?) in the series.

 

TUS, QRP, ?, KLJ, HIJ

 

A) ONM B) MNO
C) NOM D) MON
 
Answer & Explanation Answer: C) NOM

Explanation:
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Filed Under: Alphabet Test
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Q:

45 + 47 = ?

 

A) 8/12 B) 48/35
C) 8/35 D) 16/35
 
Answer & Explanation Answer: B) 48/35

Explanation:
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Filed Under: Simplification
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Q:

What least number must be subtracted from 13601, so that the remainder is divisible by 87 ?

A) 23 B) 31
C) 29 D) 37
 
Answer & Explanation Answer: C) 29

Explanation:

87)13601(156
       87
       -----
       490
       435
        -----
        551
        522
         -----
         29
         -----
Required number is 29.

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Filed Under: Numbers

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