Solution:
Total numbers= 450 + 300 - 150 - (64 + 43 - 21)
= 514
The number of 3-digit numbers, that are divisible by either 2 or 3 but not divisible by 7, is ___
The number of 3-digit numbers, that are divisible by either 2 or 3 but not divisible by 7, is ___
