The speed of a car can reach 180 km / h, which is 7 / 8 slower than that of a supersonic plane. How many km / h is the speed of this supersonic plane?

The speed of a car can reach 180 km / h, which is 7 / 8 slower than that of a supersonic plane. How many km / h is the speed of this supersonic plane?

180/(1-7/8)=1440km/h

A car can reach 180 kilometers per hour, 78 times slower than a supersonic plane. How many kilometers per hour does this supersonic plane fly?

A: This supersonic plane flies 1440 kilometers per hour

The plane flies 1425 kilometers per hour, and the car travels 285 kilometers in three hours. How many times is the speed of the plane as that of the car?

285 △ 3 = 95 km / h
1425 △ 95 = 15 times
The speed of an airplane is 15 times that of a car
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The speed of a car can reach 240 kilometers per hour, which is 7 / 8 slower than that of a supersonic plane. What is the speed of this supersonic plane?

Aircraft speed 240 ÷ (1-7 / 8) = 1920 km / h