Test Preparation on CSIR Test Prep For Life science Paper-2

1.

Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?

2.

What was the day of the week on 28th May, 2006?

3.

If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time?

4.

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

5.

A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?

6.

A watch which gains uniformly is 2 minutes low at noon on Monday and is 4 min. 48 sec fast at 2 p.m. on the following Monday. When was it correct?

7.

How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?

8.

A number consists of 3 digits whose sum is 10The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is:

9.

A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7:9. How many liters of liquid A was contained by the can initially?

10.

A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?

11.

If 0.75 : x :: 5 : 8, then x is equal to:

12.

Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:

13.

The certain worth of a certain sum due sometime hence is Rs. 1600 and the true discount is Rs. 160The banker's gain is: