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

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?

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

The average price of three items of furniture is ₹5045. If their prices are in the ratio 3:5:7, the price of the costliest item (in ₹) is

If 30% of a number exceeds 20% of it by 24, then the number is:

Kiran spends 75% of his income. If he saves ₹90000, then his income (in ₹) is:

The count of a certain breed of bacteria was found to increase at the rate of 4% per hour and then decrease by 2% per hour. Find the bacteria at the end of 2 hours if the count was 2,00,000 initially.

The average of the squares of the first 82 natural numbers is

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

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