Question

how many 3 digit numbers are there which are the multiples of 9​

Answer 1

Smallest and largest 3 digit number multiplied by 9 are 108 and 999

By AP

a=108 a

n

​

=999 d=9 n=?

999=108+(n−1)9

n=100.

Answer 2

Answer:

here are 100 3digit numbefor multiples of 9