umber?
eonor mows a lawn in 4 hours Alex can mow the same lawn in 5 hours. How long
ould it take both of them working together to mow the lawn?
e pipe can drain a pool in 12 hours. Another pipe can drain the pool in 15 hours
Inna does it take both pipes working together to drain the pool?
Answers & Comments
Answer:
9, 27
Step-by-step explanation:
addition?