cat questions

it is for helping cat prep students get good scores in their exams. i welcome everyone to take part in our quiz

published on April 04, 2014
1/5

A milkman mixes 20 litres of water with 80 litres of milk. After selling one-fourth of this mixture, he
adds water to replenish the quantity that he had sold. What is the current proportion of water to
milk?

2:3
1:2
3:4
2/5

If a man cycles at 10 km/hr, then he arrives at a certain place at 1 p.m. If he cycles at 15 km/hr, he
will arrive at the same place at 11 a.m. At what speed must he cycle to get there at noon?

11 km/hr
12 km/hr
13 km/hr
14 km/hr
3/5

Two boats, traveling at 5 and 10 kms per hour, head directly towards each other. They begin at a
distance of 20 kms from each other. How far apart are they (in kms) one minute before they collide.

1/12
1/4
1/6
1/3
4/5

Suppose n is an integer such that the sum of digits of n is 2, and 1010 < n <1011. The number of
different values of n is

11
10
9
8
5/5

If the sum of the first 11 terms of an arithmetic progression equals that of the first 19 terms, then
what is the sum of the first 30 terms?

0
-1
1
not unique