Complete the following activity to find, ‘how many three digit natural numbers which are divisible by 5’.Activity :Three digit natural numbers divisible by 5 are as follows :100, 105, 110, ……………, 995.\(t_n = \) ____, \(a = \) ____, \(d = 5\), \(n = ?…

Q.3 (A)(ii) Complete the following activity to find, ‘how many three digit natural numbers which are divisible by 5’.

Activity :

Three digit natural numbers divisible by 5 are as follows :
100, 105, 110, ……………, 995.

\(t_n = \) ____, \(a = \) ____, \(d = 5\), \(n = ?\)

\(t_n = a + (n - 1)d\) …………… formula

\(995 = \) ____ \(+ (n - 1) \times \) ____

\(895 = (n - 1) \times 5\)

\(\dfrac{895}{5} = n - 1\)

____ \(+ 1 = n\)

____ \(= n\)

\(\therefore\) There are 180 three digit natural numbers, divisible by 5.