The sum of the squares of 2 number is 146 and the square root of one of them is 5. The cube of the other number is 

In a group of 15 women, 7 have nose studs, 8 have ear rings and 3 have neither. How many of these have both nose studs and ear rings? 

The least number, by which 1944 must be multiplied so as to make the result a perfect cube is 

The smallest number that must be subtracted from 1000 to make the resulting number a perfect square is 

Simplify :

If the average of 11, 23 and x is 40, then what is the value of x?

Find the value of given equations

If  then what is the value of c.