Mathematics, 17.11.2019 23:31 pg67891012345

The total cost of the box and a pen is rs 50 .ifthe cost of 3 boxes is same as the cost of 7 pens ,find the cost of a box and a pen

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The total cost of the box and a pen is rs 50 .ifthe cost of 3 boxes is same as the cost of 7 pens ,f...