A) \[\text{ }40{}^\circ \]
B) \[+\text{ }40{}^\circ \]
C) \[36.6{}^\circ \]
D) \[\text{ }37{}^\circ \]
Correct Answer: A
Solution :
\[\frac{C}{5}=\frac{F-32}{9}\] \[\Rightarrow \] \[\frac{t}{5}=\frac{t-32}{9}\] \[\Rightarrow \] \[t=-\,40{}^\circ \]
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