Rahul went to buy textbooks for school and bought 17 textbooks with the money he had. Had the books been more expensive by Rs. 10 each, he would have been able to buy only 15. What is the cost per textbook when he bought 17 of them?

Question

Pv Aaditya · Answer

Let the price of a textbook be PTotal money with Rahul = 17PNew price of each textbook = P+10Total money with Rahul = (P+10)*15  = 17P=> 15P + 150 = 17P=> 2P = 150=> P = 75
So, cost of each textbook = Rs 75

Rahul went to buy textbooks for school and bought 17 textbooks with the money he had. Had the books been more expensive by Rs. 10 each, he would have been able to buy only 15. What is the cost per textbook when he bought 17 of them?

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