Find the compound interest in Rs.2400 for 2 1/2 years at 5 % p.a.,interest being compounded annually.

A shopkeeper buys pencils at 9 for Rs. 16 and sells them at 11 for Rs. 22. Find out his loss or gain percentage?

In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was:

I buy a 20% stock of face value 50/- at 45/- and sell it at 55/-. A year later, what is my yield

How much water must be added to 60 litres of milk at 1 ½ litres for 20 so as to have a mixture worth 10 2/3 a litre? 

Ajay spends 25% of his salary on house rent, 5% on food, 15% on travel, 10% on clothes and the remaining amount of Rs. 27,000 is saved. What is Ajay’s income?

What is 25% of 25% equal to?

76% of 1285 = 35% of 1256 + ?

A man invested 1/3 of his capital at 7%, ¼ at 8% and the remainder at 10%. If his annual income is Rs. 561, the capital is:

If group C contains 8 questions and group B carries at least 20% of the total marks, which of the following best describes the number of questions in group B?