The diagram above illustrates the mercury-in-glass thermometer used for determining the temperature of a room….

The diagram above illustrates the mercury-in-glass thermometer used for determining the temperature of a room. Use the data on it to determine the room temperature. 

  • A.
    3.3°C
  • B.
    7.0°C
  • C.
    13°C
  • D.
    30.0°C
Correct Answer: Option D
Explanation

Let the room temperature be X.

We have, (frac{3-0}{10-0} = frac{X-0}{100-0})

(frac{3}{10} = frac{X}{100})

(X = frac{3 times 100}{10})

= 30°C

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