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12. A shopkeeper earns a profit of 2 by selling one book and a loss of 50 paise per pen while selling
pens of his old stock.

By Ariana

12. A shopkeeper earns a profit of 2 by selling one book and a loss of 50 paise per pen while selling
pens of his old stock. In a particular month he incurred a loss of? 10. In this period he sold 40
books. How many pens did he sell in this period?​

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Ariana

13. PQRS is a rectangle in which PQ = 10 cm
and PS = 6 cm. T is a point on PQ such that
RST is an isosceles triangle who

Find the area of a sector of a circle with radius 6 cm and angle of sector 60°
​

1 thought on “12. A shopkeeper earns a profit of 2 by selling one book and a loss of 50 paise per pen while selling<br />pens of his old stock.”

  1. Answer:

    A shopkeeper earns a profit of Rs. 2 by selling one book and incurs a loss of 50 paise per pen while selling pencils of her old stock.

    Profit per book Rs. 2

    Loss per pen 50 paise,

    (i) In a particular month she incurs a loss of Rs. 10.

    The number of book sold 50.

    Let the number of pen sold be x

    Rs. 10 = Rs. 50(2) – Rs. 0.5(x)

    => 0.5x = 50-10

    => 0.5x = 40

    => x = (40)/(0.5)

    => x = 80.

    Number of pencils sold = 80.

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