How many quarts equals five gallons, and how many liters equals five gallons?

##" 5 US gallons"~~18.925 " litres"## ##" 5 US gallons = 20 quarts"##

The name 'quart' sounds like quarter ##->1/4##

From this you can see the link between 4 quarts = 1 gallon '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ##color(blue)("Solving for quarts in 5 gallons")##

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Using ratios ##("quarts")/("gallons") -> ("4 quarts")/("1 gallon")##

But we need 5 gallons.

Then ##4/1=("quarts count")/5##

Multiply both sides by 5

##4/1xx5=("quarts count")/5xx5##

Write as ##4xx5="quarts count" xx5/5##

But ##5/5 = 1##

##4xx5="quarts count" xx1##

##20="quarts count"##

##color(blue)("So 20 quarts make 5 gallons.")##

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ##color(blue)("Solving for litres in 5 US Gallons")##

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Understood that 3.785411784 litres = 1 US Gallon Use litre conversion as 3.785

As a ratio

##(3.785" litres")/(1" US gallon") = ("litres count")/5##

##color(blue)("litres count"~~5(3.785)~~18.925 " litres ~~ 5 US gallons")##