The number of 39 three digit numbers 39 which are multiples of 9 are ........

Quantitative Aptitiude (CLAT) Number System

The number of 'three-digit numbers' which are multiples of 9 are:

101

100

Explanation:

Hugest three digit 999/9 = 111 numbers that are multiples of 9.
The number of single and two digit numbers divisible by 9 are 99/9 = 11
Subtracting, the number of three digit numbers divisible by 9 are 111–11=100
Hence, option 3 is the correct answer.