Martin has 48 blue balloons and 36 orange balloons. He separates the balloons into mixed groups of blue and orange. There at the same number of blue balloons in each group, and the same number of orange balloons in each group. What is the least total number of balloons that could be in each group? a) 4 b) 7 c) 9 d) 21
I asked this question early and got two different answers without showing me how. The number of groups were not specified.