Three liquids P, Q, R are given . 4 kg of P at 60 degree Celcius and 1 kg of R at 50 degree Celcius when mixed produce a resultant temperature 55 degree Celcius. A mixture of 1 kg of P at 60 degree Celcius and 1 kg of Q at 50 degree Celcius shwos a temperature of 55 degree Celcius. What will be the resulting temperature when 1 kg of Q at 60 degree Celcius is mixed with 1 kg of R at 50 degree Celcius.

Dear Arnab 

Assume the specific heets of the three liquids to be p,q,r respectively,

Then using the given conditions we can evaluate a relation between p,q,r thus we can get the desired answer.

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