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A small aeroplane can travel at 320 km/h...

A small aeroplane can travel at 320 km/hr in still air. The wind is blowing at a constant speed of 40 km/hr. The total time for a journey against the wind is 135 minutes. What will be the time, in minutes for the return journey with the wind? (Ignore take off and landing times for the aeroplane.)

A

97.5 min

B

105 min

C

120 min

D

127.5 min

Text Solution

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The correct Answer is:
B
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