Two number M and N are such that the sum of 5% of M and 4% of N is two-third of the sum of 6% of M and 8% of N. What is the ratio of M and N?

Ranu and Rabu appeared at an examination. Rabu secured 9 marks more than Ranu and her marks was 56% of the sum...

In a class, 20% of the students are below 20 years of age. The number of students above 20 years of age is two...

A large cube is formed from the material obtained by melting three smaller cubes of 3,4 and 5 cm side. What is...

Two trains of the same length running in opposite directions cross a man standing on the platform in 27 second...

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men...

Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of t...