The sum of first five prime numbers is:

a, b, c and d are negative integers. If a<sup>b</sup> + a<sup>c</sup> + a<sup>d</sup&gt…

If the numbers $$ \root 3 \of {9} , \root 4 \of 20 , \root 6 \of {25} $$   are arranged in ascending order, t…

If we divide the unknown two-digit number by the number consisting of the same digits written in the reverse order, we g…

Find the least number which will leaves remainder 5 when divided by 8, 12, 16 and 20.

Prof. Suman takes a number of quizzes for a course. All the quizzes are out of 100. A student can get an A grade in the …

In a certain series, each number except the first and second is obtained by adding the previous two numbers. If the firs…

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