Antiquarian 4454

How much more expensive is it for the owner to sell a book he bought in an antiquarian book for half the price if he sells it for two-thirds of the original price?

Correct answer:

p =  33.3333 %

Step-by-step explanation:

p1=1/2=21=0.5 p2=2/3=320.6667 p=100 (p2p1)/p1=100 (0.66670.5)/0.5=33.3333%

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