Question

The ratio of red paint and blue paint in paint mixture is 3:4 . How much blue paint is needed to make 1400 ml of paint mixture

Answer 1

Explanation:

First 3 + 4 is 7. Then for the red paint ( 3 ) , this is written.

=
`(3)/(7)` * 1400

Then calculated.

=
`(3)/(7)` *
`(1400)/(1)` =
`(4200)/(7)` = 600 ml for the red paint.

Then its easy to find the blue paint, either the long way ( above ) or...

= 1400 ml - 600 ml = 800 ml for blue paint.

Have a wonderful day! :-)