###
**A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is-
**

A. 250
B. 276
C. 280
D. 285
**Answer: Option D**

## Show Answer

Solution(By Apex Team)

Since the month begins with a Sunday, so there will be five Sundays in the month.
$\begin{array}{l}\therefore\text{ Required average }\\
=\left(\Large\frac{510\times5+240\times25}{30}\right)\\
=\Large\frac{8550}{30}\\
=285\end{array}$

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