Question

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How many two digit natural numbers are divisible by 3??

I want detail and step by step explanation.​

Answer 1

there are lot of numbers like

Step-by-step explanation:

6,9,12,15,18,21,24,27,30,33,36,39,42,45,4851,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99

Answer 2

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◾◾Your answer is here...

The numbers from 10 to 99 which are divisible by 3 are 12,15,.......99.

This is an AP with first term a=12and d =3

Let there be n terms in this AP

Then tn =99

tn=a+(n-1) ×d

99=12 +(n-1) ×3

99-12=(n-1) ×3

(n-1) ×3=87

n-1=87/3

n-1=29

n=29+1

n=30

Answer: The two digit natural numbers divisible by 3 are 30.

Hope it helps you.