a shop keeper earns a profit of 12% in selling book at 10% discount on printed price. The ratio of the xost price to printed price of the book is?
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Answer:
45/56
Step-by-step explanation:
cost price = c
printed price = p
selling price = c(1+12/100)= 1.12c
selling price = p(1-10/100) = 0.9p
1.12c = 0.9p
c/p = 0.9/1.12
c/p = 45/56
Munikalyan:
very very thanks sir
why cost price and printing price are equal?
cost price and printing price are not equal . they are in ratio of 45/56
selling price has been calculated from cost price as well as from printed price and equated
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