The cost of 10 pens is Rs 300. Find the cost of 8 pens.

Rs 10

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Rs 15

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Rs 12

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Rs 20

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Solution

The correct option is B Rs 15
Cost of 100 pens = Rs 300

$∴$ cost of one pen = 300/10 = 30

Cost of 8 pens = $30 \times 8 = R s .240$

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