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01-12-2020
Mathematics

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A stationer sold 1 dozen of pen at the rate of Rs.25 each and gained Rs.120 altogether.how much was the cost price of the pens

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Аноним Аноним

01-12-2020

Answer:

Rs.15

Step-by-step explanation:

The stationer sold 1 dozen of pens, meaning he sold 12 pens.

He gained Rs.120, meaning he gained Rs.(120/12) = Rs.10 for each pen.

Hence, the cost price was Rs.(25 - 10)

= Rs.15

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