Answer:
10a.) 6 10b.) 4 sopranos, 10 altos, and 6 tenors
Step-by-step explanation:
24:60:36
these can all be divided by 6, or their gcf
So each group would have 4 sopranos, 10 altos, and 6 tenors
Hope this helps :) And sorry, I couldn't quite get the last two
