Question

Raju bought 10 pen for 13 rupees.3 pens were returned to the shop as there were 3 pens left, after competition. How much would he spent in all?​

Answer 1

Answer:

⇒ 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

therefore, x=240/4=60

∴ The number of pens bought are 60 and pencil bought are 48.

Answer 2

Answer:

9.1 rupees

Step-by-step explanation:

Cost of each pen = 13÷10 = 1.3 rupees

Cost of 7 pens = 1.3×7 = 9.1 rupees