Marian bought a 2L bottle of fruit juice for $5.50. Ivan bought a 0.75 L bottle of the same juice for $2.95. Which was the better buy?
Find the price per liter $ / L
Marian $5.50 / 2 L = $ 2.75 per liter
Ivan $ 2.95 / .75 liter = $ 3.93 per liter