1.

A body takes 5 minutes for cooling from \[{{50}^{o}}C\] to \[{{40}^{o}}C.\] Its temperature comes down to \[{{33.33}^{o}}C\] in next 5 minutes. Temperature of surroundings is                      [MP PMT 2002]

A.            \[{{15}^{o}}C\]                    
B.            \[{{20}^{o}}C\][L1]
C.            \[{{25}^{o}}C\]                    
D.            \[{{10}^{o}}C\]
Answer» C.            \[{{25}^{o}}C\]                    


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