Two 095-Kg Masses,one Aluminum and One Tin,both at 80 $\circ$ C,are Placed in 1

Multiple Choice

Two 0.95-kg masses,one aluminum and one tin,both at 80.0 ^$\circ$ C,are placed in 1.00 kg of water at 20.0 ^$\circ$ C.What is the equilibrium temperature of the system? The specific heats of aluminum and tin are 900 J/kg ^$\circ$ C and 227 J/kg ^$\circ$ C,respectively.

A) 32.2 ^$\circ$ C
B) 27.1 ^$\circ$ C
C) 13.2 ^$\circ$ C
D) 40.3 ^$\circ$ C