Question

An area of 16m^2 can be covered by 1.5 litres of pain. How many litres are needed to cover 20m^2?

Answer 1

Greetings!

Solve for x.
$16:1.5=20:x$
$16/1.5=20/x$
Cross Multiply.
$16*x=20*1.5$
Simplify.
$16x=30$
Divide both sides by 16.
$(16x)/16=(30)/16$
Simplify.
$x=1.875$

1.875 litres of pain would be required to cover an area of 20 meters².

Hope this helps.
-Benjamin