The value of : $$\left( {1 + \frac{1}{2}} \right)$$ $$\left( {1 + \frac{1}{3}} \right)$$ $$\left( {1 + \frac{1}{4}} \rig…

Which one of the following is not a prime number?

Given that, three numbers are such that the second number is twice the first and thrice the third. Also the average of t…

Find the remainder when 67<sup>107</sup> is divided by 7.

$$999\,\frac{1}{7} + 999\frac{2}{7} + 999\frac{3}{7} + $$     $$999\frac{4}{7} + $$   $$999\f…

The digit in unit's place of the number (1570)<sup>2</sup> + (1571)<sup>2</sup> + (1572)<sup…

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

A teacher wants to arrange his students in an equal number of rows and columns. If there are 1369 students, the number o…