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| Q. |
The temperature which has the same reading on both Fahrenheit and Celsius scales is – |
| A. | 40° |
| B. | -40° |
| C. | -34° |
| D. | -140' |
| Answer» B. -40° | |
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Explanation: If C is the temperature in Celsius and F is the temperature in Fahrenheit then, C/S = (F-32)/9. They are equal at -40° (minus 40 degrees), because if we convert the readings of Celsius and Fahrenheit, we will have: Celsius to Fahrenheit (-40°C x 9/5) +32 = -72 + 32 = -40°F. Fahrenheit to Celsius (-40°F - 32°) x 5/9 = (-72) x 5/9 = -40°C. |
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