Question

12. A shopkeeper earns a profit of 2 by selling one ball and incurs a loss of 60 paise while sellingone top from his old stock.
(a) In a particular month, he sells 20 balls and 40 tops, what is his profit or loss?
(b) In a particular month, he earns a total loss of * 12. If he sells 9 balls in that month, then how mi
tops does he sell in that month?
(c) In the next month, he earns neither profit nor loss. If he sold 30 balls how many tops did he sell?
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Answer 1

Answer:

Step-by-step explanation:

By selling a pen gain is Rs.2

and by selling a pencils, he loses 50 paise

and an eraser, he loses 15 paise

On one day, he gain =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

Ratio in pencil and eraser =7:10

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

7x×50+10x×15=1000

⇒350x+150x=1000

⇒500x=1000

⇒x=2

Numbe rof penciles =7×2=14

Answer 2

Answer:

hope it helps to you dear sister