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The price of a pen is 5 rupees more than that of a pencial. The price of a book is 8 rupees more than twice of the price of a pencial. A man bought each of these iteams. It cost him 53 A.)what is the price of a pencial?B.)what is the price of a pen? C.)what is the price of a book? |
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Answer» Answer: 10 & 15 & 28 Step-by-step explanation: Let the price of pencil be RS a. So, Price of pen = 5 more than a = a + 5 Price of book = 8 + 2 times of a = 2A + 8 Total amount = Rs 53 = > price of pencil + price of pen + price of book = Rs 53 = > a + (a + 5) + (2a + 8) = 53 = > a + a + 2a + 13 = 53 = > 4a = 53 - 13 = 40 = > a = 40/4 = 10 (A): price of pencil = a = Rs 10 (B): price of pen = a + 5 = 10+5 = Rs 15 (C): 2a + 8 = 2(10)+8 = 28 |
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