The plane flies at a speed of 180 km / h. if he flew 200 km / h, he spent 30 minutes less on the way than
| November 25, 2020 | education
The plane flies at a speed of 180 km / h. if he flew 200 km / h, he spent 30 minutes less on the way than at a speed of 180 km / h. What route did he fly?
path – x
time – y
180 * x = y
200 * (x – 30) = y
200 (x – 30) = 180 x
200 x – 6000 = 180 x
200 x -180 x = 6000
20 x = 6000
x = 300 minutes
300 minutes = 5 hours
180 * 5 = 900 km
answer: the plane flew 900 km.
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