The average temperature on Wednesday in Chicago, St. Louis, and Pittsburgh was 27Â°C. The average temperature that same day of St. Louis, Pittsburgh, and Jersey City was 30Â°C. If temperature in Jersey City was 32Â°C, what was the temperature on Wednesday in Chicago?  Choose the most appropriate option.
A) 22Â°C
B) 23Â°C
C) 24Â°C
D) 25Â°C
E) 26Â°C
Solution: Average temperature for Chicago, St. Louis and Pittsburgh = 27Â°C   Total temperature = 3*27= 
<gadget id="calculator">3*27</gadget>
<output>81</output>
81   Average temperature for St. Louis, Pittsburgh and Jersey City= 30Â°C   Total temperature = 3*30= 
<gadget id="calculator">3*30</gadget>
<output>90</output>
90   Temperature in Jersey City= 32Â°C   Now,   (Chicago+St. Louis+Pittsburgh)-(St. Louis+Pittsburgh+Jersey City) = 81-90   Chicago - Jersey City = -9   Chicago = Jersey City - 9 = 23Â°C   Answer: Option 23Â°C
<result>B</result>
The average temperature on Wednesday in Chicago, St. Louis, and Pittsburgh was 27Â°C. The average temperature that same day of St. Louis, Pittsburgh, and Jersey City was 30Â°C. If temperature in Jersey City was 32Â°C, what was the temperature on Wednesday in Chicago?