Find the smallest number which when increased by 20 is completely divisible by 12, 20, 15, 18 and 24.

If the price of rice increases by 20% and a person reduces its consumption by 20%, by what percentage will his total expenditure on rice decrease?

If the mean proportional of A and 27 is 18, then find the value of A.

A 266 m long train passes through a 559 m long tunnel in 66 sec. Find the speed of the train.

In an NSS college camp, there is food provision for 350 students for 40 days. If 50 more students join the camp, then for how many days will the provision last?

Find the smallest number which when increased by 20 is completely divisible by 12, 20, 15, 18 and 24.

If the price of rice increases by 20% and a person reduces its consumption by 20%, by what percentage will his total expenditure on rice decrease?

If the mean proportional of A and 27 is 18, then find the value of A.

A 266 m long train passes through a 559 m long tunnel in 66 sec. Find the speed of the train.

In an NSS college camp, there is food provision for 350 students for 40 days. If 50 more students join the camp, then for how many days will the provision last?