Question

a shopkeeper earns a profit of rs 5 by selling a notebook and incurs a loss of 50 paise per pencil and eraser while selling these from old stock on a particular day she earns a profit of 30 . If she sold 10 notebooks and the numbers of pencil and erasers she sold are in the ratio 6:4 find the number of pencil and eraser sold on that day​

Answer 1

Answer:

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Answer 2

⭐ Answer ⭐

By selling a pen gain is Rs.2

and by selling pencils, he loses 50 paise

and an eraser, he loses 15 paise

On one day, he gains =Rs.10

On that day he sold 10 pens and pencils and erasers in the ratio of 7:10

On ten pens, his gain =10×2=Rs.20

loss on pencils and erasers =Rs.20-Rs.10=Rs. 10=1000 paise

the Ratio in pencil and eraser =7:10

Let the number of pencils =7x, then eraser =10x

7xx50+10xx15=1000

→ 350x+150x=1000

→ 500x=1000

⇒x=2

Number of pencils =7x2=14

and number of erasers =10x2=20

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