Question

You and a friend each drive 50.0 km. You travel at 90 km/h; your friend travels at 95.0 km/h. How long will your friend wait for you at the end of the trip?
time difference= 50(1/90-1/95) hrs

check my thinking.
50(0.0005847953
1 minute 32 sec
1 minute 42 sec

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