Question

A person has to make 146 pieces of a long bar. He takes 4 seconds to cut a piece. What is the total time taken by him in seconds to make 146 pieces?

Answer 1

1 piece is cut in 4sec. so 146 piece is cut in x sec

1 / 4 = 146 / x   [they are in Direct Proportions ]

1x=4 *146

x =4*146

x =  584 is the time taken to cut 146 pieces of a long bar. ANS