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A uniform thermometre scale is at steady...

A uniform thermometre scale is at steady state with its 0 cm mark at `20°C` and 100 cm mark at `100°C`. Temperature of the 60 cm mark is-

A

A. `48^(@)C`

B

B. `68^(@)C`

C

C. `52^(@)C`

D

D. `58^(@)C`

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