Question

Paint is red: blue in a ratio 2:4. If 6 liters of blue is used. How much red

Answer 1

The red paint is used is 3 liters

Explanation:

Ratio states that how two numbers compare.

Ratio is a comparison of the size of one number to the size of another number.

i.e, a to b means a:b

Given the ratio of paint red(r) and paint blue(b)

i.e,

by the definition of ratio:

r:b = 2:4

Let the number be x

then,

The quantity of red paint used be 2x and the quantity of blue paint used be 4x

It is given that the 6 liters of blue paint is used.

then;

4x =6

Divide both sides by 4 we get;

`(4x)/(4) =(6)/(4)`

Simplify:

`x = (3)/(2)`

then the red paint used is 2x =
`2 * (3)/(2) =3` liters

Therefore, the red paint is used is 3 liters.