The truck traveled 336 km at the same speed of 42 km per hour. On the way back, the car spent 1 hour less.
| January 8, 2021 | education
The truck traveled 336 km at the same speed of 42 km per hour. On the way back, the car spent 1 hour less. At what speed did the car return?
To find out the time, you need to divide the distance by the speed:
336/42 = 8 (h) – spent by the car.
8-7 = 7 (h) – the car wasted on the way back.
Speed is distance divided by time:
336/7 = 48 (km / h) – speed on the way back.
Answer. 48 km / h.
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