SOLUTION: An aircraft carrier travels to Paris and back. It took three hours longer to go there than it did to come back. The average speed on the trip there was 16 mph. The average speed on

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Question 1135455: An aircraft carrier travels to Paris and back. It took three hours longer to go there than it did to come back. The average speed on the trip there was 16 mph. The average speed on the way back was 26 mph. How long did the trip there take?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
               SPEED      TIME       DISTANCE

GOING             16        x          d

RETURN            26        x-3        d

DIFFERENCE                  3

system%2816x=d%2C26%28x-3%29=d%29
-
16x=26x-78
26x-16x=78
10x=78
x=78%2F10
about 7 hours 48 minutes

Answer by ikleyn(52798) About Me  (Show Source):
You can put this solution on YOUR website!
.
An aircraft carrier travels to Paris and back. It took three hours longer to go there than it did to come back.
The average speed on the trip there was 16 mph. The average speed on the way back was 26 mph. How long did the trip there take?
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The condition has a FATAL error.

No aircraft carrier exists flying at average speed of 16 mph.


Even 3-rd grade student knows it . . .