A temperature scale has a lower fixed point of 40mm and a upper fixed point...

JAMB 1995

A temperature scale has a lower fixed point of 40mm and a upper fixed point of 200mm. What is the reading on this scale when a thermometer reads 60^oC?

A. 33.3mm
B. 36.0mm
C. 96.0mm
D. 136.0mm

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Correct Answer: Option D

Explanation

200mm ..... 100^oC

Xmm ..... 60^oC

400mm ..... 0^oC

\(\frac{x - 40}{200 - 40}\) = \(\frac{60 - 0}{100 - 0}\)

X = 136mm

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A temperature scale has a lower fixed point of 40mm and a upper fixed point...

Correct Answer: Option D

Explanation

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