For lifting a load of 50 kg through a distance of 2.5 cm, an effort o – McqOptions

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1.	For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is
A.	60 %
B.	65 %
C.	70 %
D.	75 %
Answer» E.

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