Question

Area ratios problem?

Answer 1

The painter needs `1.2` litres of paint to cover `1` `m^2` of area.

We need to find how much is needed to cover `7` `m^2`

We can solve this by using the ratio

`color(blue)(("Paint needed to cover " 1 m^2)/("Area")=("Paint needed to cover " 7m^2)/("Area")`

Let the paint needed to be `x`

`rarr1.2/1=x/7`

`rarrx=1.2*7`

`color(green)(rArr8.4` `color(green)("litres"`

Hope u understand this. Try to solve the other questions by yourself

Hope that helps!!! ☺•☻