Question

how many 2 digit number can be divisible by 3​

Answer 1

Answer:

30

An arithmetic progression (A.P) is a progression in which the difference between two consecutive terms is constant. ∴ Two digit numbers divisible by 3 = 30.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

First two digit number divisible by 3 = 12

Last two digit number divisible by 3 = 99

An arithmetic progression (A.P) is a progression in which the difference between two consecutive terms is constant.

A.P = 12,15,18,…,99

here

First term (a) = 12

Common difference (d) = 3

Let us consider there are n numbers then

an = 99

a + (n – 1)d = 99

12 + (n – 1)3 = 99

12 + 3n – 3 = 99

n = 29+1

n = 30

∴ Two digit numbers divisible by 3 = 30.

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