Question

how many three digit natural number are divisible by 5
solve it​

Answer 1

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The first three digit natural number

divisible by 5 is 100.

• Common difference d = 5

Last three digit natural number divisible by 5 is 995

We know that,

• tn = a + (n -1) d

• 995 = 100 + (n -1) 5

• 895 = 5 (n -1)

• 179 = n -1

• n =180

Hence, there are 180 three digit natural numbers divisible by 5.