Question

Average temperature of a place in 25 days is recorded as 15 degree Celsius. Later it was found that average of four days which was 14 degree celsius by mistake taken as 16.5 degree celsius. Find the original average temerature of that place within that diration.
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Answer 1

I think 15.25degrees. I am thinking about it

Answer 2

Given:

The total number of days = $25$

The average temperature of a place in $25$ days = $15$°C

The average of $4$ days which was $14$°C by mistake taken as $16.5$°C

To find:

The original average temperature of that place within that duration.

Step-by-step explanation:

The sum of the temperature of a place in $25$ days ⇒ $15\;\times\;25$ = $375$

The actual total temperature value of $4$ days is given by

⇒ $14\;\times\;4$ = $56$

The mistaken total temperature value of $4$ days is given by

⇒ $16.5\;\times\;4$ = $66$

Now,

The original average temperature ⇒ $\frac{375+56-66}{25}\;=\;14.6^\circ C$

Answer:

The original average temperature of that place within that duration is $14.6^\circ C$