Some chocolates are bought at the rate of 11 for 10rs and the same number at the rate of 9 for the?

Question

some chocolates are bought at the rate of 11 for 10rs and the same number at the rate of 9 for the 10rs. if the whole lot is sold at one rupee per chocolate, find the gain or loss per cent on the whole dealing.

Answer

first chocholate unit price: 10/11 = 0.909
second chocholate unit price 10/9 = 0.111

x = qty sold by type=> 2 x total qty sold

Price1: 2 x (0.909+1.111) = 4.040 x

Second scenario:
Price2: 2 x (1+1) = 4 x

P2/P1 = 4x/4.04 x = 0,99 =99%

Answer: 1% loss

Some chocolates are bought at the rate of 11 for 10rs and the same number at the rate of 9 for the?

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