the cost of 17 notebook is rupee 212.50 . find the cost of 12 such book
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If, the cost of 17 notebooks = Rs 212.50
So, the cost of 1 notebook
= Rs 212.50 / 17
= Rs 12.5
∴ Cost of 12 notebooks
= Number of notebooks × cost of 1 notebook
= Rs (12 × 12.5)
= Rs 150
Hence, the cost of 12 such notebooks is Rs 150.
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So, the cost of 1 notebook
= Rs 212.50 / 17
= Rs 12.5
∴ Cost of 12 notebooks
= Number of notebooks × cost of 1 notebook
= Rs (12 × 12.5)
= Rs 150
Hence, the cost of 12 such notebooks is Rs 150.
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