The sum of all natural numbers from 75 to 97 is -

A rational number between $${\text{ }}\frac{3}{4}$$ and $${\text{ }}\frac{3}{8}$$ is :

Find the remainder when 54<sup>124</sup> is divided by 17.

What is the unit digit in the product (3<sup>65</sup> × 6<sup>59</sup> × 7<sup&gt…

$$0.\overline {142857} \div 0.\overline {285714} \,$$    is equal to :

The number of two digit prime numbers which remain prime even inverting the position of its digits is:

The product of two positive integers is 2048 and one of them is twice the other. Then the small of the number is :

LCM of two numbers is 936. If their HCF is 4 and one of the numbers is 72, the other is