In a certain town, 40% of people have brown hair, 30% of people have brown eyes and 12% have both brown hair and brown eyes. How many people in town have neither brown hair nor brown eyes ?

Find the smallest number by which 2400 should be divided to make it a perfect cube.

A company publishes to its customers that at a certain compound interest rate, a sum of money deposited by anyone will become 8 times in 3 years. If the same amount is deposited at the same compound rate of interest, then in how many years will it become 16 times ?

What is the farthest distance between two points on a cylinder of: HEIGHT 8 and RADIUS 8 ?

The sum of two numbers is 135 and their HCF is 9. How many such pairs of numbers can be formed ?

In how many ways a committee consisting of 5 men and 6 women can be formed from 8 men and 10 women ?

Simplify the following: (0.3×0.3 + 0.03×0.03 − 0.6×0.03) / 0.54

The LCM and HCF of two numbers are 84 and 21 respectively. If the ratio of two numbers is 1 : 4, then the larger among two numbers is:

If x : y = 2 : 3, the value of (3x + 2y) : (2x + 5y) is: