Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A crane is used to lift 
of coal from a mine 
deep. The time taken by the crane is 1 hour. The efficiency of the crane is 
. If 
, then the power of the crane is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Power supplied 
Power used by crane 
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