For a train that travels from one station to another at a uniform speed of 40km/hours and returns to final station at speed of 60 km/hour then its average speed is
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Answer:
Let distance from one station to other station===d
Average speed == distance/time
d+d/d(1/60+1/40)
2d/d(1/24)
2d×24/d
24×2===48km/hr
Explanation:
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