Acar leaves the town traveling at 72 km/h. an hour later, a second car leaves the same town, on the same road, traveling at 90 km/h. in how many hours will the second car overtake the first?

it will take 5 hours before the second car overtakes the first

Step-by-step explanation:

Let t represent the time it will take the second car to overtake the first car.

At the point where the second car overtook the first car, they would have covered the same distance. The first car leaves the town traveling at 72 km/h.

Distance = speed × time

Distance covered by the first car would be

72 × t = 72t

An hour later, a second car leaves the same town, on the same road, traveling at 90 km/h. It means that the time spent by the second car in travelling the same distance would be t - 1 hours. Therefore,

Distance covered by the second car would be

90(t - 1) = 90t - 90

Since the distance is the same,

90t - 90 = 72t

90t - 72t = 90

18t = 90

t = 90/18 = 5 hours

they will manufacture 8496 cars

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step-by-step explanation: