4 groups of 10 = 40. 40 /5 = 8 so the answer is 8 groups of 5.
She can have 1 group of 40, 2 groups 0f 20, 4 groups of 10, 8 groups of 5, 5 groups of 8 10 groups of 4, 20 groups of 2 or 40 groups of 1. This assumes that you don't want any partial books in any of your groups.
5 times 2/100 = 1/10
There are 6 groups.
40/8=5
4 groups of 10 = 40. 40 /5 = 8 so the answer is 8 groups of 5.
5
She can have 1 group of 40, 2 groups 0f 20, 4 groups of 10, 8 groups of 5, 5 groups of 8 10 groups of 4, 20 groups of 2 or 40 groups of 1. This assumes that you don't want any partial books in any of your groups.
13
5 times 2/100 = 1/10
40
40 groups of ten.
Think 5 groups of 8 each. 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 5 x 8 = 40
8,640 groups.
40 ÷ 7 = 5 with remainder 5.
40/5 = 8 of them.
there are 5