When 2<sup>31</sup> is divided by 5 the remainder is -

The denominator of a fraction is 3 more than its numerator. If the numerator is increased by 7 and denominator is decrea…

Five times of a positive integer is 3 less than twice the square of that number. The number is -

The greatest whole number, by which the expression n<sup>4</sup> + 6n<sup>3</sup> + 11n<sup&g…

The greatest four digit number which is exactly divisible by each one of the numbers 12, 18, 21 and 28 :

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

While solving a problem, by mistake, Anita squared a number and then subtracted 25 from it rather than first subtracting…

Find the square root of $$\frac{{\left( {0.064 - 0.008} \right)\left( {0.16 - 0.04} \right)}}{{\left( {0.016 + 0.08 + 0…