A grocery store bought ice cream for $2.90 per half gallon and stored it in two freezers. During the night, one freezer malfunctioned and ruined 13 half gallons. If the remaining ice cream is sold for $3.96 per half gallon, how many half gallons did the store buy if they made a profit of $52.40?
Solution : -
cost of 13 half gallons = 13 * $2.90 = $37.7
Now let the gallons of other freezer = x, then
$3.96x = $37.7 + $52.40
3.96x = $90.1
x = $90.1 / 3.96
x = 22.8
Or by rounding off
x = 23
Now the total number of gallons did the store buys = 23 + 13 = 36 half gallons
Apr 7th, 2015
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