Determine 5673

An airplane flew from city A to city B at a speed of 500 km/h. Fifteen minutes later, an airplane took off from city B to city A at a speed of 450 km/h. After 45 minutes, the planes met. Determine the distance between A and B.

Correct answer:

s =  600 km

Step-by-step explanation:

v1=500 km/h v2=450 km/h t2=15/60=41=0.25 h t1=45/60=43=0.75 h s=v1 t1+v2 (t1t2)=500 0.75+450 (0.750.25)=600 km

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Showing 1 comment:
Thanks for your gratefully received help. Dennis of Hereford U.K.

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