Question

When 100 g of a liquid A at 100°C is added to 50 g of a liquid B at temperature 75°C, the temperature of the mixture becomes 90°C. The temperature of the mixture, if 100 g of liquid A at 100°C is added to 50 g of liquid B at 50°C, will be :-

(a) 80°C

(b) 60°C

(c) 70°C

(d) 85°C

Answer 1

Answer: (a) 80°C

400=5T

T=80