On a new scale of temperature (which is linear) and called the W scale, the freezing and boiling points of water are 39°W and 239°W respectively. What will be the temperature on the new scale, corresponding to a temperature of 39°C on the Celsius scale?

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78°W

117°W

200°W

139°W

answer is B.

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Detailed Solution

(239-39)(100-0) = (t-39)(39-0) or t = 117°W

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