A dishonest dealer professes to sell his goods at the cost price, but uses only 960 grams in place of a kilogram weight. Find his profit percent?

A). 10 %

B). 20 %

C). 30 %

D). 40 %

40 %

Profit % =(Original Weight − False Weight)/False Weight × 100

⇒ P % = (1000-960)/960× 100

⇒40/960 × 100 = 4 1/6 %

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