Question

Two planes are flying toward each other and the different between their speed is 60 km per hour . If they are 2400km apart and passes each other after 5 hour , find their speed ?

Answer 1

Answered by expert

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Answer 2

Answer:X --- 210km/h and 270 km/h

Step-by-step explanation:

Let speed of first plane = X

Speed of second plane = X+60 km/h

After 5 hours

5(X +60)+5x = 2400

5x+300+5x= 2400

10x +300 = 2400

X= 2100/10

X= 210km/h(speed of first plane)

Now speed of second plane

X+60km/h

210+60

X= 270km/h.

Hope it will help...