Using percent to find the height

A 24-inch-tall picture frame is 20% as tall as the ceiling is high.  How high is the ceiling?
A.)  4.8 feet
B.)  10 feet
C.)  12 feet
​D.)  120 feet

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Notice the answer choices are all in feet.  Therefore, change the 24 inches to feet.

24 inches = 2 feet   {12 inches in 1 foot}

x = height of ceiling

0.2x = 2   {2 feet is 20% of the ceiling}
x = 10 feet   {divided each side by 0.2}

B.)  10 feet

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