The product of two numbers is 45 and their difference is 4. The sum of squares of the two numbers is

If (x¹¹+1) is divided by (x+1), then the remainder is :

If the sum of first three natural numbers from a group of six consecutive natural numbers is 36, then the sum of last three natural numbers will be? 

A rational number between $${3\over4} $$ and $${3\over8} $$ is :

When a positive integer n is divided by 5 the remainder is 2. What is the remainder when the number 3n is is divided by 5 ?

Two numbers are respectively 30% and 40% less than a third number. What percent is the first number of the second?

The sum of all natural numbers between 100 and 200. Which are multiple of 3 will be: 

What should be added at least in 1140 so that it becomes a perfect square?