15. What is the mathematical average of number of weeks in a year, seasons in a year, and the number of days in January?

A.36
B.33
C.32
D.31
E.29

I think the answer is D.

Right.

To find the mathematical average, we need to add up the number of weeks in a year, the number of seasons in a year, and the number of days in January, and then divide the sum by 3 (since we're averaging 3 numbers).

Number of weeks in a year: Typically, there are 52 weeks in a year.
Number of seasons in a year: There are generally 4 seasons in a year.
Number of days in January: In a non-leap year, January has 31 days.

Adding them up: 52 + 4 + 31 = 87.

Now, we divide this sum by 3: 87 / 3 = 29.

Therefore, the mathematical average is 29.
So, the answer is E. 29.

To find the mathematical average of the number of weeks in a year, seasons in a year, and the number of days in January, we need to add up the three values and then divide by 3.

The number of weeks in a year is 52 (there are 52 weeks in a year).
The number of seasons in a year is 4 (spring, summer, autumn, and winter).
The number of days in January is 31.

Adding these values together: 52 + 4 + 31 = 87.

Dividing by 3 to find the average: 87 / 3 = 29.

Therefore, the mathematical average is 29 days.

So, the answer is (E) 29.