| Vishal Chugh asks : what is the number of zeros in the following expression 6!^6! * 7!^7! * 8!^8! * 9!^9! * 10!^10!?? |
| Saurabh Singh asks : IfN is the number of ways of dividing 500 students into five distinctly identifiable sections of 100 students each, how many zeros does N end with? 1. 0 2. 2 3. 5 4. 4 |