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

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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​



A shopkeeper earns a profit of  by selling a pen and incurs a loss of  per pencil and loss of  per eraser while selling old stock. On a particular day, he earns a profit of . If he sold  pens and number of pencils and erasers he sold are in the ratio , then find the number of pencils and eraser he sold that day.

SOLUTION

By selling a pen gain is 

and by selling a pencils, he loses  paise

and an eraser, he loses  paise

On one day, he gain 

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

On ten pens, his gain 

loss on pencils and erasers  paise

Ratio in pencil and eraser 

Let number of pencils , then eraser 

Numbe rof penciles 

and number of erasers 

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