There are 10 seats around a circular table. If 8 men and 2 women have to seated around a circular table, such that no tw…

A book-shelf can accommodate 6 books from left to right. If 10 identical books on each of the languages A,B,C and D are …

How many factors of 2<sup>5</sup> × 3<sup>6</sup> × 5<sup>2</sup> are pe…

There are eight boxes of chocolates, each box containing distinct number of chocolates from 1 to 8. In how many ways fou…

A select group of 4 is to be formed from 8 men and 6 women in such a way that the group must have at least 1 women. In h…

A question paper consists of three sections 4,5 and 6 questions respectively. Attempting one question from each section …

A letter lock consists of 4 rings, each ring contains 9 non-zero digits. This lock can be opened by setting four digit c…

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there …