Answer:
4 hours
Step-by-step explanation:
I found the average
(3+5)/2
8/2 = 4
This is probably wrong because logically it wouldn't make sense for them to take longer than 3 hours if two people are cleaning but i dont know
Answer:
1 7/8 hours
Step-by-step explanation:
x/3+x/5=1
5x+3x=15
8x=15
x=1 7/8 hours