The steam point and the ice point of a mercury thermometer are marked as `80^@C` and `20^@C`. What will be the temperature in centigrade mercury scale when this thermometer reads `32^@C`?

Explanation

To solve the problem, we need to determine the temperature on the centigrade mercury scale when the thermometer reads 32°C. The key points we have are:

- The steam point (T_s) is marked as 80°C.
- The ice point (T_i) is marked as 20°C.
- The thermometer reads T = 32°C.

We can use the formula that relates the readings of the thermometer to the actual temperature on the centigrade scale:

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