A shokeeper earns a profit of 15 after selling a book at 20 discount on the printed price The ratio ...........

Quantitative Aptitude ( CCS) Profit and loss

A shokeeper earns a profit of 15% after selling a book at 20% discount on the printed price. The ratio of the cost price and the printed price of the book is ?

20 : 23

23 : 20

16 : 23

23 : 16

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Explanation:

Let M.R.P = 100
Then S.P = 80 and M.R.P : S.P = 5 : 4 ------> (i)
Since the profit is of 15%,
C.P : S.P = 100 : 115 = 20 : 23 ------------> (ii)
By combining (i) and (ii) :-
We'll get C.P : S.P : M.R.P=80 : 92 : 115
So C.P : M.R.P = 16 : 23