The temperature of a normal human body is 37 °C. On the Fahrenheit scale, this…

2018

The temperature of a normal human body is 37 °C. On the Fahrenheit scale, this temperature is:

  1. A.

    98.4 °F

  2. B.

    98.6 °F

  3. C.

    98 °F

  4. D.

    98.8 °F

Attempted by 8 students.

Show answer & explanation

Correct answer: B

Concept

The Celsius and Fahrenheit scales are related by a linear conversion.

For a Celsius temperature C, the Fahrenheit temperature is F = C × 9/5 + 32.

Application

  1. Let C = 37 °C, the temperature given in the question.

  2. Substitute the value: F = 37 × 9/5 + 32.

  3. Calculate the scaled part: 37 × 9/5 = 66.6.

  4. Add the offset: F = 66.6 + 32 = 98.6 °F.

Cross-check

Reverse the conversion: C = (F − 32) × 5/9. For F = 98.6 °F, C = (98.6 − 32) × 5/9 = 37 °C, which reproduces the given temperature.

Therefore, 37 °C equals 98.6 °F.

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