If the digit in the unit and the ten's places of a two digit number are interchanged, a new number is formed, which is g…

Which one of the following is not a prime number?

The value of : $$\frac{{3.157 \times 4126 \times 3.198}}{{63.972 \times 2835.121}}$$

If n is an integer, then (n<sup>3</sup> - n) is always divisible by :

$$\,{2^{16}} - 1$$   is divisible by -

The greatest value among the fractions :$$\frac{2}{7},$$ $$\frac{1}{3},$$ $$\frac{5}{6},$$ $$\frac{3}{4}$$

If $$\frac{3}{4}$$ of a number is 7 more than $$\frac{1}{6}$$ of the number then $$\frac{5}{3}$$ of the number is :

Three numbers are in the ratio 1 : 2 : 3, and the sum of their cubes is 4500. The smallest number will be -