The average temperature of a city for the first sixteen days of January is 22°C, and the average temperature for the last sixteen days of the same month is 26°C. If the average temperature for the entire month is 24°C, what is the temperature on the sixteenth day?

Options
a) 24⁰C
b) 25⁰C
c) 22⁰C
d) 23⁰C

Solution

As per question
Total temperature of first 16 days = 16 x 22
Total temperature of last 16 days = 16 x 26
Total temperature of 31 days = 31 x 24
Temperature on 16th day = Total temperature of first 16 days + Total temperature of last 16 days – Total of 31 days temperature
(16 x 22) + (16 x 26) – (31 x 24)
8( 44 + 52 – 93 )
8 x 3 = 24⁰C

Ans: a) 24⁰C