A load of 500 kg was lifted through a distance of 13 cm. by an effort – McqOptions

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1.	A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is
A.	50 %
B.	40 %
C.	55 %
D.	30 %
Answer» B. 40 %

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