Isn’t this just 20m? Or is it a trick question and I’m just not getting it?
Arman (10m) Babken (10m) Cecilia
Answer:
11
Step-by-step explanation:

You can have a maximum of 3 groups. This is due to the fact that you only have 3 sopranos to equally divide between groups. Over 3 you would have a group lacking a soprano so 3 is the greatest you can make it.
Answer:
Alice
Step-by-step explanation:
5 feet is approximately 1.5 meters so we can say Alice is taller than Mary by 10cm