Math, asked by maahira17, 1 year ago

How many numbers of two digit are divisible by 3?

Answers

Answered by rishika79
5

Answer:

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Answered by nikitasingh79
15

Answer:

The two digit numbers which are divisible by 3 are 30

Step-by-step explanation:

Two digit numbers which are  divisible by 3 are 12,15,18, 21 … ,99

First term , a = 12, Common difference ,d  = 15 - 12 = 3, an = 99

an = a + (n -1)d

99 = 12 + (n - 1) × 3

99 = 12 + 3n - 3

99 = 12 - 3 + 3n

99 = 9 + 3n

99 - 9 = 3n

90 = 3n

n = 90/3

n = 30

Hence, the two digit numbers which are divisible by 3 are 30.

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