SOLUTION: 1.How many inmates are needed to finish washing 600 dishes in an hour if it takes three inmates to wash five dishes within a minute?

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Question 1022886: 1.How many inmates are needed to finish washing 600 dishes in an hour if it takes three inmates to wash five dishes within a minute?





Answer by ikleyn(52818) About Me  (Show Source):
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1. How many inmates are needed to finish washing 600 dishes in an hour if it takes three inmates
to wash five dishes within a minute?
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The proportion is

600%2F%28x%2A60%29 = 5%2F%283%2A1%29,

which says that the rate is the same in both situations  ( the rate measures in  dishes%2F%28inmate%2Aminute%29 ).

First simplify the proportion

10%2Fx = 5%2F3,

then solve it for   x = %2810%2A3%29%2F5 = 6.

Answer.  6  inmates are needed.