A person spent ₹564 in buying the pens and pencils if cost of each pen is₹7and each pencil is ₹3 and if the total number of things bought was 108, how many of each type did he buy?
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Let the number of pens be x.
⇒ Then, number of pencils =108−x
⇒ Cost of pens =7x
⇒ Cost of pencils =3(108−x)
According to the question,
7x+3(108−x)=564
7x+324−3x=564
4x+324=564
4x=564−324
4x=240
∴ x= 240/4=60
⇒ Number of pencils =108−60=48
∴ The number of pens bought are 60 and pencil bought are 48.
Hope it will help u..
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