<PRE><B>Question 290451</B>
Three men can cut 72 trees in three hours.
:
{{{72/3}}} = 24 trees per man in three hrs
{{{24/3}}} = 8 trees per man per hr
:
:
 Because of a shortage of space, each time one man is added,
 each of the workers can cut one less tree per hour.
:
two men added, therefore each man cuts 6 trees/hr
:
:
 How many trees can 5 men cut in 5 hours? 
5 * 6 * 5 = 150 trees in 5 hrs</PRE>