If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey? - Study24x7
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3633 followers study24x7 04 Aug 2020 11:13 AM study24x7 study24x7

If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey?

A

45

B

50

C

40

D

35

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