The formula of inter-conversion of centigrade and Fahrenheit scale is___________?
Correct answer: B. f -32/9 =c/5
- A. c-32/9
- B. f -32/9 =c/5
- C. f-32/9=c/9
- D. none
Explanation
The temperature scales are related by (F - 32)/9 = C/5, because 32°F corresponds to 0°C and the intervals 180°F and 100°C give the ratio 9:5. Option a is the likely mistake because it omits the Fahrenheit symbol and the required Celsius term; option b is intended to mean (F - 32)/9 = C/5.
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