SOLUTION: a helicopter travels 630 kms. at the same time that a car travels 210 kms. If the helicopter travels 60 km. per hour faster than the car, how fast does each of them travel?

Question 162271: a helicopter travels 630 kms. at the same time that a car travels 210 kms. If the helicopter travels 60 km. per hour faster than the car, how fast does each of them travel?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
for both and
is the same for both

For helicopter:

For car:

------------------
For helicopter:

For car:

The time, is the same for both, so

Multiply both sides by

km/hr
and, since

km/hr
The car travels 30 km/hr and the helicopter
trvels 90 km/hr
check:

OK
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