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

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

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.	25%.
Answer» E.