chapter 1237 last question

Mateo looked at Shirley as she nonchalantly spoke of wins and losses, a surge of anger uncontrollably spreading in his heart.
Mateo stood up and said aloud, "Shirley, if your family only had one air conditioner with a cooling capacity of one horsepower and a refrigerator, how long could you use a hundred yuan worth of electricity?"
Shirley, upon hearing Mateo's question, doubted for a moment if she had heard wrong.
"What did you say?"
"Shirley, how much does heating cost per square meter?"...