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:

A man spends  $${1\over 3}$$ of his income on food,   $${2\over 5}$$  of his income house rent and   $${1\over 5}$$ of his income on clothes. If he still has Rs. 400 left with him, his income is: 

The product of two numbers is 24 times the difference of these two numbers. If the sum of these two numbers is 14. Find the larger number?

Find the difference between mean and median in the given data 2.5, 4.6, 7.2, 3.3, 4.9, 5.6, 2.7?

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

What is the quotient , when 2645 is divided by 48 ? 

Direction : What value should come in place question mark(?) in the following questions?

$$ 4{7\over 8}$$ - $$ 2{1\over 2}$$+$$ 1{3\over 4}$$=?

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