In an examination for the final year students of a school, 60 offered history, 50 economics, 16 offered history and literature, 22 offered economics and literature. If 10 candidates offered all the 3 subjects find the number that offered economics only

the answer is 15% decrease

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

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