Ncert Exercises & Solutions

Calculate the temperature which has the same numeral value on Celsius and Fahrenheit scale.

Hint: Apply the concept of conversion of temperature scales.

Step 1: Use the formula of conversion of temperature scales.

Let Q be the value of temperature having the same value at Celsius and Fahrenheit scale.
Now, we can write,

\frac{° F - 32}{180} = \frac{° C}{100}

\Rightarrow

Let F = C = Q

\Rightarrow

\frac{Q - 32}{180} = \frac{Q}{100} = Q = - 40 ° C o r - 40 ° F