Question

A cruise ship traveled to Tahiti and back.

On the trip there it traveled 10 mph and on
the return trip it went 15 mph. How long
did the trip there take if the return trip
took eight hours?

Answer 1

Let's call the distance to Tahiti "D".

We know that the time it took to return was 8 hours, and the speed was 15 mph. So:

D = 15 * 8

D = 120 miles

Now, let's use the formula:

time = distance / speed

For the trip to Tahiti, we know the speed was 10 mph. Let's call the time it took "t":

t = D / 10

t = 120 / 10

t = 12 hours

So the trip to Tahiti took 12 hours.