SOLUTION: 5 people build a wall in one hour. how long will it take 8 people to build a wall? give the answer in minutes, please ......

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Question 1148960: 5 people build a wall in one hour.
how long will it take 8 people to build a wall?
give the answer in minutes, please ......
Found 2 solutions by josgarithmetic, greenestamps:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
r, rate for 1 person
5r, rate for 5 people
ONE wall, 5r%2A1=1
5r=1
r=1%2F5


Eight People, same one wall; how much time?
x, time

8rx=1
8%281%2F5%29x=1
highlight%28x=5%2F8%29hour
About 38 minutes

Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


(8/5) as many workers; same amount of work --> (5/8) as much time.

ANSWER: (5/8)*1 hour = (5/8)*60 minutes = 37.5 minutes