gmatcracker2010 wrote:
How many three-digit integers are not divisible by 3 ?
A. 599
B. 600
C. 601
D. 602
E. 603
Total three-digit integers = 999-100+1 = 900.
That's a multiple of 3, so we will have a full number of cycles of 3 ("notdivisible, notdivisible, divisible" being a cycle).
How many full cycles? 900/3 = 300. So, 300 "divisibles."
600 remain.
Answer choice B.
