The ratio of number of books and number of pens sold by a shopkeeper is 5 3 resp If the price of 6 p...........

Quantitative Aptitude ( CCS) Profit and loss

The ratio of number of books and number of pens sold by a shopkeeper is 5:3 resp. If the price of 6 pens is Rs.270 and the price of a book is 60% more than the price of a pen. If the total revenue earned by the shopkeeper is Rs.2475 find the number of books sold by shopkeeper.

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Explanation:

Price of each pen = 270/6 = Rs.45
Price of each book = 45*1.6 = Rs.72
Now, 3x*45 + 5x*72 = 2475
=> x = 5
Number of books sold by the shopkeeper = 5*5 = 25