08th October, 2016 (CSAT)


1. In a class of 110 students, x students take both Mathematics and Statistics, 2x + 20 students take Mathematics and 2x + 30 students take Statistics. There are no students who take neither Mathematics nor Statistics. What is x equal to?

(a) 15

(b) 20

(c) 25

(d) 30


2. Three boys and three girls are to be seated around a table in a circle. Among them the boy X does not want any girl neighbour and the girl Y does not want any boy neighbour. How many such arrangements are possible ?

(a) 5

(b) 6

(c) 4

(d) 2

Tomorrow: Next questions for practice

For previous questions refer yesterday’s post

Click on MAINS and PRELIMS pages also.