Exams

How much water (in litres) must be added to 80 litres solution of milk and water containing 10% milk, so that it becomes a 5% milk solution?

There is a common English word that is seven letters long. Each time you remove a letter from it, it still remains a common English word - from seven letters right on down to a single letter. What is the original word, and what are the words that it becomes after removing a letter at a time?

In the following question, select the missing number from the given series.

5, 9, 13, 17, ?

Find the total surface area (in cm2) of a hemisphere of diameter 21 cm.

The Latin American revolutions from 1804 to 1821 were

1 bottle of honey costs Rs 240 but a pack of 4 of the same bottles costs Rs 768. What is the effective discount (in %) on the pack?

The Indian to beat the computers in mathematical wizardry is

Which is the World's Fastest SUPERCOMPUTER and to which country it belongs ?