The price of 4 pens and 3 pencils is 49 rupees and the price of 9 pens and 3 pencils is 99 rupees. What is the cost of a pen? What is the price of a pencil?
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it is too confusing .i can not understand this question.
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the cost of a pen is 10 ₹
and the cost of a pencil is 3₹
I hope you understand that how I prove it
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