Question

A shopkeeper earns a profit of Rs 10 on selling a pencil box and incurs a loss of Rs 5 per pen while selling his old stock.

(a) In a particular month, he incurs a loss of Rs 50. In this period, he sold 25 pencil boxes, how many pens did he sell in this
period?

(b) In the next month, he earns neither profit nor loss. If he sold 50 pencil boxes, how many pens did he sell ?

Answer 1

Answer:

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