Question

Due in 2 minutes, please help!

How many 3-digit whole numbers are multiples of both, 3 and 4?

Answer 1

Some of 3's

150, 180, 210, 240, 270, 300, 600, 900

Some of 4's

120, 160, 200, 240, 280, 320, 360, 400, 800

One thing these numbers have in common,

is that the 3-digit chain always ends in 1,200.

Hope this helps!!!