TCS Papers: Sample Questions 109  111 of 502
Examrace Placement Series prepares you for the toughest placement exams to top companies.
Question number: 109
» Aptitude
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
» Aptitude
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