Question

garvit earns a profit of rupees 2 by selling one pen and suffers a loss of 50 paise by selling one pencil one day garvit earns a profit of rupees 10 if he sold 15 pens then how many pencils did he sell​

Answer 1

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

and number of erasers =10×2=20

Answer 2

The answer

Number rof pencils=7×2=14

and number of erasers=10×2=20

this is answer