The cost of 5 book is Rs. 125, then find the cost of 1 dozen books.
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The cost of 5 book is Rs. 125, then find the cost of 1 dozen books.

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Solution-

∵ 1 dozen = 12 units

∴ The cost of 5 books = Rs. 125

∴ The cost of 1 book = Rs.125/ 5 = Rs. 25

∴ The cost of 12 books = Rs.25 × 12 = Rs. 300

Thus, the cost of 1 dozen books is Rs 300.

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