Question

Andy is hanging wallpaper in his kitchen. He is able to cover 2 2/5 of the walls in the room using 6 rolls of wallpaper. What is the number of rolls of paper used per wall?

Answer 1

2 1/2

Explanation:

Answer 2

Answer: The number of rolls of paper is
`2(1)/(2)`.

Step-by-step explanation: Given that Andy is hanging wallpaper in his kitchen. 6 rolls of wallpaper is used to cover
`2(2)/(5)` of the walls.

We are to find the number of rolls of paper used per wall.

We will be using unitary method to solve the given problem.

We have,

`2(2)/(5)=(12)/(5).`

Now, number of rolls used to cover
`(12)/(5)` of the walls = 6.

Therefore, number of rolls used to cover 1 wall is given by

`(6)/((12)/(5))=(5* 6)/(12)=(5)/(2)=2(1)/(2).`

Thus,
`2(1)/(2)` rolls of paper used per wall.