A Person Tries to Heat Up Her Bath Water by Adding

A person tries to heat up her bath water by adding 5 liters of water at T = 82 ^$\circ$ C to 60 liters of water at T = 30 ^$\circ$ C.What is the final temperature of the water?

A) 31 ^$\circ$ C
B) 32 ^$\circ$ C
C) 33 ^$\circ$ C
D) 34 ^$\circ$ C
E) 35 ^$\circ$ C