UPSC NDA I 2017 General Ability Solved Paper

Given that at given instance, Kelvin thermometer and a Fahrenheit thermometer both give the same reading for a certain sample
To calculate this temperature using the above relation
K−273=‌

5

9

(F−32)
But given that at any point K=F thus substituting K in place of F
∴9(K−273)=5(K−32)⇒4K=2297
K=574.25K
Now the temperature in degree Celsius
C=574−273=301∘C