Question

To make green paint a painter mixes yellow paint and blue paint in the ratio of 3:2 if we used 12 ltrs of yellow paint, how much blue paint did he use? Explain step by step

Answer 1

according to ques-
yellow paint equal to =3=12ltrs
therefore let the blue paint be x
then,the equation=
3:2::12:x
after solving the mean ,extreme terms we get=
3x=12×2
x=12×2/3
which is 8

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Answer 2

First,

Ratio of yellow to blue paint = 3:2

Amount of yellow paint = 12 liters

Amount of blue paint = x litres

  3:2::12:x

=) Multiplying both the extremes and means: 3x = 12 * 2

=) 3x = 24

=) x = 24 / 3

      =) 8 litres

∴ He used 8 lites of blue paint.