On a thermometer, the freezing points of water is marked as `20^(@)C` and the boiling points of water is marked as `150^(@)C` . A temperature of `60^(@)C` will be read on this thermometer as

Options

A. `98^(@)C`
B. `110^(@)C`
C. `40^(@)C`
D. `60^(@)C`

Answer

A

Explanation

Using `(100-60)/(60-0) = (150-x)/(x-20)`
or `40 (x-20) = 60 (150-x) :. x= 98^(@)C`