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A person covers 40% of a distance with a...

A person covers 40% of a distance with a speed of 60 km/h and the remaining with a speed of 40 km/h. What is his average speed for the whole journey in km/h?
एक व्यक्ति किसी दूरी का 40% हिस्सा 60 किमी/घंटा की चाल से तथा शेष दूरी 40 किमी/घंटा की चाल से तय करता है | पूरी यात्रा में उसकी औसत चाल ( किमी/घंटा में ) ज्ञात करें |

A

`500/11`

B

`600/13`

C

`500/13`

D

`600/11`

Text Solution

Verified by Experts

The correct Answer is:
B
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