|
Question 923111: It takes 64 minutes for 3 people to paint 8 walls.
How many minutes does it take 4 people to paint 6 walls?
Answer by josmiceli(19441)   (Show Source):
You can put this solution on YOUR website! Twice as many people can paint the same number
of walls in half the time, so
-----------------------------
6 people paint 8 walls in 32 min
-----------------------------
The same number of people can paint 1/4 as many
walls in 1/4 of that time, so
-----------------------------
6 people paint 2 walls in 8 min
-----------------------------
1/3 as many people can paint the same number of walls
in 3 times that time, so
-----------------------------
2 people paint 2 walls in 24 min
-----------------------------
twice as many people can paint twice as many walls in
the same time, so
-----------------------------
4 people paint 4 walls in 24 min
-----------------------------
The same number of people can paint half as many
walls in half that time, so
-----------------------------
4 people paint 2 walls in 12 min
-----------------------------
The same number of people can paint 3 times as
many walls in 3 times that time, so
-----------------------------
4 people paint 6 walls in 36 min
Hope I got it
|
|
|
| |
