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

P is a prime number and (P<sup>2</sup> + 3) is also a prime number . The no. of numbers that P can assume …

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

11 * X = $$\frac{{693}}{9}$$

Which one of the following is not a prime number?

How many numbers less than 1000 are multiples of both 10 and 13 ?

The difference of the squares of two consecutive even integers is divisible by which of the following integers ?

A number divided by 52 gives remainder 45. If the number divided by 13 , the remainder will be :