Aptitude [TCS Placement]: Sample Questions 46 - 48 of 174

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Question 46

Aptitude
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Short Answer▾

A finish the work in 10 days. B is 60 % efficient than A. So how many days does B take to finish the work?

Explanation

  • A can finish his work in 10 days.
  • B is 60 % more efficient than A, so B will take 60 % less time than A to finish the work.
  • 60 % of 10 days =

= 6

  • So, B will take 6 days less than A to finish the same work.
  • So, B will take days to finish the work.

Question 47

Aptitude

Question

MCQ▾

Last year Pandit was thrice his sister՚s age. Next year he is only twice her age. After 5 years what is Pandit՚s age?

Choices

Choice (4)

a.

14

b.

11

c.

2

d.

12

Answer

d.

Explanation

  • Let present age of Pandit and his sister be p and s years respectively.
  • Next year Pandit is twice of his sister՚s age.

  • Last year Pandit was thrice his sister՚s age.

  • From equation (i) ,

  • Substituting this value of p in equation (ii) ,

  • From ,
  • Pandit՚s present age,

  • After 5 years, Pandit՚s age =

Question 48

Aptitude
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Short Answer▾

Complete the series 7, 9,13 , ________, 27,37

Explanation

  • First term of the series is 7.
  • Second term of the series is 9, i.e.. Difference between first and second term is + 2.
  • Third term of the series is 13, Difference between second and third term is + 4.
  • Fourth term needs to be find out.
  • Fifth term of the series is 27.
  • Sixth term of the series is 37, i.e.. Difference between sixth and seventh term is + 10.
  • Here, difference between two consecutive terms is increasing by factor of two.
  • So, difference between third and fourth term should be + 6.
  • Missing term will be

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