The difference between compound interest and simple

Two numbers add up to 18, and the sum of their reciprocals is 5/2. Calculate the square of the product of the two numbers.

Total of Series of n terms 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 ……………………

A boy was asked to find 3/5 of a number. Instead, he calculated 4/5 of the number. His answer exceeded the correct answer by 96. Find the number.

Find the median of 2, 8, 6, 6, 7, 9, 5, 12 and 13.

If the difference between two numbers is 4 and their product is 45, what is the sum of their squares?

Find the sum of all multiples of 9 between 1 and 100 (including both ends if applicable).

If '502x62y' is a seven-digit number which is divisible by 72, then find the least possible value of (x - y).

Find the value of 'a' in the given data if the mean of the given data is 27.

20, 25, 30, 28, 26, 24, a, 29, 22, 23

Which number from the following is divisible by 24?

A) 825196

B) 674328

C) 592416

D) 431232