The east positive integer that should be subtracted from 3011 x 3012 so that the difference is a perfect square is-

The third proportional of two numbers 9 and  24 is

The largest natural number which exactly divides the product of any four consecutive natural numbers is

On adding a natural number P to the product of four consecutive natural numbers we get a perfect square number. The minimum value of P is:

The sum of three consecutive numbers is 87. The middle number is : 

many times will the buttons of a typewriter be pressed to write the numbers 121 to 1346?

The average of six consecutive odd numbers is 26. Find the difference between the largest and the smallest of these numbers.

What will be come in place of question mark(?) in the following number series?
14, 8, 7 , 11.5, 22, ?