Question

how many two digits are divisible by 3?​

Answer 1

Hi

Here is your answer

12,15,18.....99

a=12

an=99

n=?

d=3

an=a + (n-1)d

99=12+(n-1)3

(n-1)3=99-12

(n-1)=87/3

n=29+1

n=30

Therefore there are 30 two digit numbers divisible by 3.

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Answer 2

Answer:

numbers divisible by 3 are 3,6,9,12....

Step-by-step explanation:

longest two digit number divisible by 3 is 12 highest two digit number by 3.

we know 99/3 = 33

highest two digit number divisible by 3 is 99 so the series starts with 12 and ends with 99