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Three different liduid A , B, C of equa...

Three different liduid A , B, C of equal masses have temperatures of `12^@C`, `19^@C` and `28^@C`. The temperature When A and B are mixed is `16^@C` and When B and C are mixed is `23^@C`. What will be the temperature when A and C are mixed?
A. `19^@C`
B. `20^@C`
C. `21^@C`
D. `22^@C`

A

`26.02^@C`

B

`22.60^@C`

C

`20.26^@C`

D

`21.62^@C`

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