Q. 485.0( 7 Votes )

Find the nu

Answer :

We have to find the numbers between 101 and 999 which are divisible by both 2 and 5

That means the numbers divisible by 10 between 101 and 999.


Let, the required divisible numbers be,


110, 120, 130, …, 990


a=110, d=10, last term, l=990


Number of terms, n = +1


= + 1


= +1


=89


Hence, the number of natural numbers between 101 and 999 which are divisible by both 2 and 5 are 89.

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