Mechanical Aptitude Levers

How to Solve Mechanical Aptitude Levers Problem.

Theory:- You have to balance the Torque of both side about Hindge.

I.e Torque of Anticlockwise/ = Torque Required in Clockwise/Anticlockwise to balance the weight

Problem 1

Apply the formula

w x d1 = f x d2 can be rearranged to f = (w x d1)/d2

Problem 2.

This type of problem can be solved like this:
f = (w1 x d1) + (w1a x d1a)/d2

1) How much weight is required to balance the lever?

A.15kg B.10kg C.7.5kg D.5kg


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