<PRE><B>Question 990544</B>
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*25 }}}, 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 )


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