Question

A person spent 564in buying pens and pencils if cost of each pen is$7and each pencil is $3​

Answer 1

Answer:

Let the number of pens be x.

number of pencils=108-x

cost of pens=7x

cost of pencils=3(108-x)

7x+3(108-x)=564

7x+324-3x=564

4x+324=564

4x=564-324

4x=240x=240/4

x=60

Number of pens=60

Number of pencils=108-60=48

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