Question 1154015
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Use the given data to find the downstream and upstream speeds:<br>
downstream: 28/2 = 14mph
upstream: 24/4 = 6mph<br>
The 14mph is the speed of the current added to the speed of the boat; the 6mph is the speed of the current subtracted from the speed of the boat.<br>
Logically, that means the speed of the boat is halfway between the 14mph and the 6mph.<br>
So the boat's speed is 10mph; and that makes the speed of the current 4mph.<br>
ANSWERS:
boat speed: 10mph
current speed: 4mph<br>
There are a great number of different kinds of problems where you end up with this kind of situation -- the sum of two numbers is A and the difference of those two numbers is B.<br>
In any situation like that, one of the numbers is the average of A and B; and then the other number is the difference between that average and either of A or B.<br>