The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)

The efficiency of a hydraulic press is given by (where W = Weight lift

1.	The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)
A.	(W/p) ‚àö√≥ (A/a)
B.	(p/W) ‚àö√≥ (a/A)
C.	(W/p) ‚àö√≥ (a/A)
D.	(p/W) ‚àö√≥ (A/a)
Answer» D. (p/W) ‚àö√≥ (A/a)