<PRE><B>Question 884237</B>
{{{ 600 }}} men can last {{{ 28 }}} days on the given food
Twice as many men could only last half that time, so
{{{ 1200 }}} men can last {{{ 14 }}} days
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1/3 as many men can last 3 times as long, so
{{{ 400 }}} men can last {{{ 42 }}} days
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Twice as many men can last half that time, so
{{{ 800 }}} men can last {{{ 21 }}} days
You end up with {{{ 600 + 200 = 800 }}} men, so
21 days is the length of time they can last





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