
Contributing Member
Try out the answer for the following question
Between 100 and 300 how many will have digit 2 in the end, how many numbers would have digit 3 both in the end and the beginning?

Expert Member
Re: Try out the answer for the following question
how many will have digit 2 in the end,  20 numbers
how many numbers would have digit 3 both in the end and the beginning?  No number between 100 and 300.

Expert Member
Re: Try out the answer for the following question
Using permutation for the first part we can have only 2 at the unit's place and 10 possible numbers in the ten's place.and only 1 and 2 in the hundred place thus 2 * 10 * 1=20
For the second part no such number exists between 100 and 300
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