TCS Papers: Sample Questions 38 - 40 of 502

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Question number: 38

» Aptitude

Short Answer Question▾

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Find the value of@@+25-++@16, where@denotes “square” and + denotes “square root”.

Explanation

@denotes ‘square’ and + denotes ‘square root’

Here,@@+25 = =

And ++@16 = = = 4

Subtracting both the terms,

625 – 4 = 621

Question number: 39

» Aptitude

Short Answer Question▾

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An athlete decides to run the same distance in 1/4th less time than she usually took. By how much percent will she have to increase her average speed?

Explanation

  • An athlete decides to run the same distance in th less time than she usually took.
  • Let she took t time with s1 speed.
  • To complete the distance in time, she needs s2 speed
  • Distance covered by her will be same, i. e.

  • So, we can say athelete needs to increase her speed by 33.33%.

Question number: 40

» Aptitude

Short Answer Question▾

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Find the missing term: 7,9, 13, ? , 27,37.

Explanation

  • The given series is an arithmetic series.
  • First term of the series is, a = 7
  • Difference between the terms is 2n
  • First term =
  • Second term =
  • Third term =
  • Fourth term =
  • Fifth term =
  • Sixth term =
  • Applying this pattern we are getting the exact series terms.
  • So, series is 7,9, 13,19,27,37
  • Missing term is 19.