A car travels along a certain road at an average speed of $60 \mathrm {~m} / \mathrm { s }$ and returns along the same road at an average speed of $20 \mathrm {~m} / \mathrm { s }$ Calculate the average speed for the round trip.
A) 20mph
B) 30mph
C) 40mph
D) 50mph
E) 60mph

Question

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The Answer of A car travels along a certain road at an average speed of $60 \mathrm {~m} / \mathrm { s }$ and returns along the same road at an average speed of $20 \mathrm {~m} / \mathrm { s }$ Calculate the average speed for the round trip.
A) 20mph
B) 30mph
C) 40mph
D) 50mph
E) 60mph

A Car Travels Along a Certain Road at an Average 60 m/s60 \mathrm {~m} / \mathrm { s }60 m/s

A Car Travels Along a Certain Road at an Average $60 \mathrm {~m} / \mathrm { s }$