Question

121 balls are placed in groups of 7 and in 5 baskets, How many baskets of 7 were there? Help please :)

Answer 1

3 baskets of 7 = 21
20 baskets of 5 = 100
total = 121

or

8 baskets of 7 = 56
13 baskets of 5 = 65
total = 121

or

13 baskets of 7 = 91
6 baskets of 5 = 30
total = 121

Answer 2

Does the question ask you to fit as many groups of 7 as you can. Otherwise you have a large number of combinations ?

Answer 3

7x13 + 6*5 is the largest number of 7 buckets available