In a railway compartment, 6 seats are vacant on a bench. In how many ways can 3 passengers sit on them?

The distance from the point P to two vertices A and B of an equilateral triangle are |PA| = 2 and | PB | = 3....

The average of 10 integers is 16. If the sum of 6 of them is 100. What is the average of other 4?

If p and n are integers such that p> n> and = 12, which of the following value of p n?

Income tax is raised from tk. 4 to tk. 5 but the revenue is increased by 10% only. Find the decreased percenta...

Find the area of rhombus one side of which measure 20 cm and one diagonal 24 cm.

Which chemical is required for removing, from the raw-water?