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A solution is kept between 68° F and 77° F. What is the range in Celsius?
A15 < C < 20
B40 < C < 45
C20 < C < 25
D68 < C < 77
Answer & Solution
Correct answer: C. 20 < C < 25
C = 5(F - 32)/9 gives 5(36)/9 = 20 and 5(45)/9 = 25, so 20 < C < 25.
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