TCS Papers: Sample Questions 109 - 111 of 502

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Question number: 109

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Short Answer Question▾

Write in Short

What percent of 60 is 12?

Explanation

Let, x percent of 60 is 12.

Writing this statement into equation form,

So, 20 % of 60 is 12.

Question number: 110

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Short Answer Question▾

Write in Short

Average of 5 numbers is -10 and sum of 3 numbers is 16, what is the average of other two numbers?

Explanation

  • Average of 5 numbers is -10.
  • So, sum of all 5 numbers will be
  • Sum of 3 numbers is 16.
  • We are asked to find the average of other two numbers.
  • Let other two numbers be x and y. So, average of these two numbers will be .

Average of these two numbers is

Question number: 111

» Aptitude

MCQ▾

Question

There are 20 persons sitting in a circle. In that there are 18 men and 2 sisters. How many arrangements are possible in which the two sisters are always separated by a man?

Choices

Choice (4) Response

a.

18! 2

b.

12

c.

17!

d.

172!

Answer

a.

Explanation

  • There are total 20 persons sitting in a circle. Among them there are 18 men and 2 sisters.
  • We are asked to find total how many arrangements are possible in which two sisters are always separated by a man.
  • Let the first sister be x. She can sit anywhere in the 20 place.
  • So, second sister can sit to her left or right in 2 ways.
  • Remaining 18 men can sit in 18 places in 18! ways.
  • So, total possible arrangements = 18! 2