Help please !!!!!?

Question

Fifteen grams of substance X at 95 degrees Celsius is mixed with 45 grams of substance Z at 85 degrees Celsius in a container which was originally at 25 degrees Celsius. Neglecting any transfer of heat to the environment, the temperature at the end of 15 minutes was 32 degrees Celsius. What is the equilibrium temperature?

95 degrees Celsius

85 degrees Celsius

32 degrees Celsius

25 degrees Celsius

Answer 1

32 degrees Celsius