Question

A shopkeeper bought three watches w1,w2 and w3 from a dealer and sold them to three different customers. The ratio of the selling prices of the watches w1,w2andw3 was 2:3:4 . The shopkeeper gains 30%and20% on the watches w1andw2 respectively but loses 40% on the watch w3 . What was the shopkeeper's 'approximate percent gain or loss in the whole transaction?

Answer 1

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