How many numbers are there between 100 & 1000 (both inclusive) such that the unit's digit is either 3 or 8 but the ten's digit is not 5 or 1?

Question

Sahil Jain · Answer

9*8*2=144.   All 3 digit no. With above condition imposed

Suri Gangula · Answer

Downloading Permutations and combinations concepts and formulas sheet will help you to solve these type of questions.

Download resources