The ratio ofthe volume of milk to that of milk coffee in a cup of cappuccino is 2 : 5. How would you find the volume of the coffee in a cup of cappuccino if 150 mL of milk is used?

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Answer 1 · 2017-08-02T16:52:18

$525$ $"mL"$ coffee

(I'm assuming that the "milk coffee" is different from the "coffee" itself.)

$"milk"/"milk coffee" = 2/5$

Let $x$ be the volume of the milk coffee.

$2/5=(150"mL")/x$

$2x=5*150$

$2x=750$

$x=750/2$

$x=375$

So, there is $375$ $"mL"$ of milk coffee in the cup.

Add this to the volume of milk:

$375$ $"mL"$ milk coffee + $150$ $"mL"$ milk $= 525$ $"mL"$ coffee