A) \[40{}^\circ \]
B) \[37{}^\circ \]
C) \[-40{}^\circ \]
D) \[80{}^\circ \]
Correct Answer: A
Solution :
Celcius temperature (\[C\]) and Fahrenheit temperature (\[F\]) are related as \[\frac{C-0}{100}=\frac{F-32}{180}\] \[\Rightarrow \] \[\frac{C}{5}=\frac{F-32}{9}\] Putting \[C=F=\] we get \[\therefore \] \[\frac{}{5}=\frac{-32}{9}\] or \[9\,\text{=5}-160\] \[\Rightarrow \] \[4\theta \,\text{=}\,-\text{160}\] \[\Rightarrow \] \[\theta \,\text{=-}\,\text{40}{}^\circ \] \[\therefore \] \[-40{}^\circ C=-40{}^\circ F\]You need to login to perform this action.
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