The force required at the plunger to lift a weight of 16$\times$104 N shall be:

Question

A hydraulic press has a ram of 20 cm diameter and a plunger of 5cm diameter. The force required at the plunger to lift a weight of 16$\times$10⁴ N shall be: 

a. 256$\times$10⁴ N               b. 64$\times$10⁴ N

c. 4$\times$10⁴ N                   d. 1$\times$10⁴  N