Question 1131995
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There are many different ways to solve problems like this; another tutor has shown you one good one.<br>
Here is the method I find easiest to use.<br>
Given: 5 trucks, 2 days, 120 tons<br>
See how each changed parameter changes the number of tons:
(1) 7 trucks instead of 5: multiply the number of tons by 7/5.  120(7/5) = 168.
(2) 3 days instead of 2: multiply the number of tons by 3/2.  168(3/2) = 252.<br>
ANSWER: 7 trucks in 3 days can transport 252 tons.