SOLUTION: a crew of ten men take a week to overhaul 25 trucks in a fleet of 100 trucks. how many men would it take to complete the overhaul of the rest of the fleet the following week?

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Question 990544: a crew of ten men take a week to overhaul 25 trucks in a fleet of 100 trucks. how many men would it take to complete the overhaul of the rest of the fleet the following week?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
1 man would take 10 times as long to
overhaul the 25 trucks, so
1 man takes 10 weeks to overhaul 25 trucks
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There are +100+-+25+=+75+ trucks left
+75+=+3%2A25+, so
1 man takes 30 weeks to overhaul 75 trucks
but it must be done in 1 week, so
30 men take 1 week to overhaul 75 trucks
( 30 times as many men will take 1/30 of the time )