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A boat travels 50 km east, then 120 km N...

A boat travels 50 km east, then 120 km North and finally it comes back to the starting point through the shortest distance. The total time of journey is 3 h. What is the average velocity, in km `h^(-1)`, over the entire trip ?

A

zero

B

100

C

17

D

33.33

Text Solution

Verified by Experts

The correct Answer is:
B
Time `="distance"/"average velocity"`

`rArr" Average velocity"="distance"/"time"`
`v=(130+120+50)/3=300/3=100km//h`
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