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Standard X

Mathematics

Inverse Variation

5 pens and 6 ...

Question

5 pens and 6 pencils together cost Rs.9 and 3 pens and 2 pencils cost Rs.5. Find the cost of 1 pen and 1 pencil.

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Solution

Cost of one pen = Rs. $\frac{3}{2}$ , Cost of one pencil=Rs. $\frac{1}{4}$

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5 pens and 6 pencils together cost Rs.9 and 3 pens and 2 pencils cost Rs.5. Find the cost of 1 pen and 1 pencil.

Cost of one pen = Rs.32, Cost of one pencil=Rs. 14

Cost of one pen = Rs. $\frac{3}{2}$ , Cost of one pencil=Rs. $\frac{1}{4}$