Inter-Conversion of Temperature in Different Scales
On a certain ...
Question
On a certain scale of temperature x, the ice points is 40∘ and the steam point is 160∘ . On another scale of temperature y, the ice points is −20∘ and the steam point is 100∘ . Convert 50∘ in x to the y-scale.
A
−25∘
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B
−20∘
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C
−10∘
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D
−15∘
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Solution
The correct option is C−10∘ Range of x: Rx=160−40=120 Range of y: Ry=100−(−20)=120 The given temp is 50∘ in scale x and let it be t in scale y. ∴50−40Rx=t−(−20)Ry