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Day-5 | Aptitude Questions and Answers with Explanation

  • Question-1
  • Explanation

Find the Odd Man Out:

9    21    66   273     1371

a)9     b) 66    c) 21    d) 273

Answer: 

b)66

The Logic applied is  (x.1) +2, (x.2)+3, (X.3)+4.

Here  x in each term denotes the value of the previous term. For Example Second term 9 = 7.1 +2  where 7 is the first term..

Considering the fourth term , Instead of 66, it should have been 67 (i.e 21.3 +4 = 67)

Hence option b is the odd option.

  • Question-2
  • Explanation

Find the Odd Man Out:

236       180    131      88      54     265

Answer: a)88

Second Term is got by subtracting 56 from the first. Third term is got by subtracting 49 from  the second and so on. Putting Together, the difference between successive terms is : – 56,     -49, -42, -35, -28. (Muliples of 7). Considering fourth term, instead of 88 it should have been 89. Hence option a is the odd option.

  • Question-3
  • Explanation

Find the Odd Man Out:

4       3    15      130      2086     52166

a)      3     b) 2086    c) 130    d) 15

Answer:

b) 2086

 

The Series is  x(1)2 -1, x(2)2 +3, x(3)2 -5, x(4)2 +7

Here x in each term denotes the value of the previous term for example second term 3 =4 (1)2 -1 where 4 is the first term. Fifth term should had been 2087 and not 2086 (fifth term can be obtained by substituting 130 for x in x(4)2  +7)

  • Question-4
  • Explanation

Find the ratio of weights of 1 gram of cotton to 1.5 gram of rubber if their densities are in the ratio of 1:2

Answer:

This is a very simple question. Since the ratio of weights is the question, one need not care about their densities.

Hence 1 gram of cotton : 1.5 gram of rubber will be in the ratio 1/1.5 = 2/3  (as simple as that)

  • Question-5
  • Explanation

7         Two companies have sales turnover of  25% and 60% more than the third company. What is the ratio of the turnover of these two companies?

a)      30:25     b) 25:40   c)  25: 32   d)15:34

Answer: 

c)25:32

Let the turnover of the third company be 100 units. Then these two companies will have turnover of 125 units and 160 units

That means 125 : 160 = 25: 32

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