Question

if you and your friend went swimming for 10 hours, then came back because they forgot something, then swam for 11 hours, how many hours would you've been swimming for?

Answer 1

Answer:

21 hours

Step-by-step explanation:

You and your friend swam for 10 hours then took a break then swam for 11 so 10+11=21 so you and your friend swam for 21 hours all together.