Question

how many two digit number are there divisible by 3?​

Answer 1

Step-by-step explanation:

We know, first two digit number divisible by 3 is 12 and last two digit number divisible by 3 is 99. Thus, we get 12, 15, 18 ,. 99 which is an AP Here, a 12, d 3 Let there ben terms. Then, an = 99 a + (n - 1) d = 99 12+ (n - 1) 3 = 99 n = 29 + 1 = 30 Therefore, two digit numbers are divisible by 3 are 30.

30

Answer 2

Answer:

12, 15, 18, 21, 24, 27, 30, 33, 36 , 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96 and99

Step-by-step explanation:

30