Paint is Red: Blue in a ratio 3:4. If 6 litres of blue is used, how much red?

1 Answer
Aug 3, 2018

Answer:

#4.5# liters of red paint.

Explanation:

As red and blue paints are n the ratio of #3:4#,

for every #4# liters of blue paint, we need #3# liters of red paint

this means for every #1# liter of blue paint, we need #3/4# liters of red paint

and for #6# liters of blue paint, we need #3/4xx6# liters of red paint

i.e. #3/(cancel4^2)xxcancel6^3=9/2=4.5# liters of red paint.