Aadi makes green paint by mixing blue paint and yellow paint in the ratio



blue : yellow = 7:3



He buys blue paint in 50-litre containers, each costing £164



He buys yellow paint in 20-litre containers, each costing £84. 80



He wants to



sell the green paint in 5-litre tins



make a 37. 5% profit on each tin.



How much should he sell each tin for?



Total marks: 5

Respuesta :

The total cost of the paint increased by the percentage of profit

expected gives the total price at which Aadi should sell the paint.

Response:

  • Each 5-litre tin should be sold for £24.53

How can the price of each tin be calculated?

The given ratio of the paint is;

Blue : yellow = 7:3

The cost of a 50-litre container of blue paint = £164

The cost of a 20-litre container of yellow paint = £84.80

The volume of the tins in which the green paint is to be sold = 5-liter

The profit on each tin = 37.5%

Required:

The amount each (5-liter) tin of green paint should be sold.

Solution:

Let X represent the volume of blue paint and let Y represent the volume

of yellow paint in the mixture, we have;

  • [tex]\dfrac{X}{Y} = \mathbf{ \dfrac{7}{3}}[/tex]

Therefore;

[tex]X = \mathbf{ \dfrac{7}{3} \times Y}[/tex]

A multiple of 50, 20 and 3 is 300

If Aadi buts 15 containers of yellow paint = 300 L, we have;

[tex]The \ volume \ of \ blue \ paint, \ X = \dfrac{7}{3} \times 300 = 700[/tex]

The number of tins of blue paint is [tex]\dfrac{700 \ L}{50 \ L/container}[/tex] = 14 containers

The total cost of the paint bought is therefore;

15 × £84.8 + 14 × £164 = £3,568

Volume of the paint = 300 L + 700 L = 1000 L

The amount at which the paint is sold = 1.375 × £3,568 = £4,906

[tex]The \ price \ of \ each \ 5\, L \ tin = \dfrac{\£4,906 }{1000 \, L} \times 5 \, L = \mathbf{ \£24.53}[/tex]

  • The amount he should sell each tin is £24.53

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