The product of 2 numbers is 1575 and their quotient is 9/7. Then the sum of the numbers is –

Any six-digit number that is formed by repeating a three-digit number, is always divisible by:

If $$x+{16\over x}=8$$, then the value of $$x^2+{32\over x^2}$$ is:

The 4th term of an arithmetic progression is 15, 15th term is -29, find the 10th term?

On dividing a certain number by 342 we get 47 as remainder. If the same number is divided by 18, what will be the remainder?

Find the greatest value of k for which the 6-digit number 24312k is divisible by 6.

In a two-digit number, its units digit exceeds its tens digit by 2 and that the product of the given number and the sum of its digits is equal to 460. The number is:

Which of the following numbers is not a prime number?