Answer :

The two digit numbers divisible by 6 are 12, 18, 24, 30,…96.

This forms an AP with first term a = 12


and common difference = d = 6


Last term is 96.


Now, number of terms in this AP are given as:


96 = a + (n - 1)d


96 = 12 + (n - 1)6


96 - 12 = 6n - 6


84 + 6 = 6n


90 = 6n


n = 15


There are 15 two - digit numbers that are divisible by 6.


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