Question

The price of a pen and a book are in the ratio 3:5. The price of a book is 12rupees more than the price of a pen find the price of a pen and that of a book

Answer 1

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Answer 2

Answer:

The price of pen and book are ₹ 2.4 and ₹ 14.4 respectively.

Step-by-step explanation:

Let the price of the pen and the book be in the ratio 3x:4x

Let the price of the pen be x

Therefore, price of the book = x+12

Therefore, 3x + 4x = x + x+12

Or, 7x = 2x + 12

Or, 7x - 2x = 12

Or, 5x = 12

Or, x = 12 / 5 = 2.4

Therefore, price of pen = x = 2.4(answer).

And, price of book = x+12 = 2.4+12 = 14.4(answer).

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