Question

10.
How
many
3
digit
natural
numbers are
divisible by 9.​

Answer 1

Answer:

108

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Answer 2

Step-by-step explanation:

3 digit numbers which is divisible by 9 are starting with

108,117,123,....999

So this is Arithmetic Progression.

Here a=108 and d=9

Now an=a+(n-1)d

999=108+(n-1)9

999-108=(n-1)9

801=(n-1)9

801/9=n-1

69=n-1

69+1=n

n=70

There are 70 natural numbers.