Zander collected 100 stickers. He gave some of his stickers to his two friends, Andrew and Bill. Andrew received 1/5 of Zander's stickers, while Bill received 3/10 of the remaining stickers. How many stickers did Andrew give to his two friends?
A step-by-step solution is:
44
Andrew received 100 x 1 / 5 = 20 stickers.

So, there were 100 - 20 = 80 stickers left.

Bill received 80 x 3 / 10 = 24 stickers.

Therefore, Andrew gave away 20 + 24 = 44 stickers.

.

Thus, the answer is 44