In a hydraulic lift, the small piston has an area of $2 {\mathrm{cm}}^2$ and the large piston has an area of $80 {\mathrm{cm}}^2$. What is the mechanical advantage of the hydraulic lift?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R

Assertion A: When you squeeze one end of a tube to get toothpaste out from the other end, Pascal’s principle is observed.

Reason R: A change in the pressure applied to an enclosed incompressible fluid is transmitted undiminished to every portion of the fluid and to the walls of its container.

In the light of the above statements, choose the most appropriate answer from the options given below.

The mechanical advantage of hydraulic lift is always equal to one.

A hydraulic automobile lift has input and output pistons with diameters of $10 \mathrm{cm}$ and $30 \mathrm{cm}$. The lift is used to hold up a car with a weight of $1.44\times {10}^4\mathrm{N}$. What pressure is applied on the input piston?

A hydraulic automobile lift is designed to lift cars with a maximum mass of $3000 \mathrm{kg}$. The area of cross section of the piston carrying the load is $425 \mathrm{cm}²$. What maximum pressure would the smaller piston have to bear?