At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?
Correct answer: D. 160°C
- A. 460°C
- B. 280°C
- C. 360°C
- D. 160°C
Explanation
Use F = (9/5)C + 32 and set the Fahrenheit reading equal to twice the Celsius reading: 2C = (9/5)C + 32, so (1/5)C = 32 and C = 160°C. Therefore, the temperature is 160°C. The common trap is 360°C, which results from mishandling the 9/5 conversion factor.
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