How many litres of pure acid are there in 8 litres of a 20% solution ?

A shopkeeper offers the following 3 schemes. Which scheme has the lowest discount percentage (all articles have same marked price)?

I. Two successive discounts of 10% and 10%

II. Buy 7 get 8

III. Buy 9 get 1 free

In an election between two candidates, the winning candidate got 70% of the valid votes and won by a majority of 9000 votes. If out of total votes polled 90% votes are valid, then what is the total number of votes polled?

You went to buy 3 articles worth Rs.500 each. However, as per the discount sale going on in the shop, you paid for two and got one free. What is the discount percentage in the deal?

133of 166of133of166 of 10000 of a number will be what percentage of that number?

If one needs to score 34% to pass a test, the pass marks out of 40 would be:

84% of a number is 105. The number is :

56% of 250 is

The difference between 44% of a number and 33% of the same number is 286. What is the 54% of that number?