Question

three digit numbers which are divisible by 3​

Answer 1

Answer:

There are 900 three-digit numbers, namely 100, 101, 102, ..., 999. The first three-digit number that is exactly divisible by 3 is 102 and the last is obviously 999. The numbers 102, 105, 108, ..., 999 form an arithmetic progression with common difference, d = 3.