Question

The price of 2 pens and 3 notebooks is 29 rupees;for 2 pens and 5 notebooksit is 40. What is the price of each

Answer 1

Step-by-step explanation:

Let the price of pen =x

notebook =y

Then,

2x+3y=29. ------------(1)

And,

2x+5y=40. -------------(2)

On subtracting eq(2) from eq(1)

We get

(2x-2x)+(5y-3y)=(40-29). => 2y=11. => y=₹5.5

On substituting in 2 nd equation

2x+5(5.5)=40. => 2x+27.5=40. => 2x=(40-27.5)

=> 2 x=12.5

=> x=₹6.25

Hence the cost of 1 pen is ₹6.25

the cost of 1 nootbook is ₹5.5