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
Show Answer
Answer-D
Solution-
Solution(By Apex Team)
Since the month begins with a Sunday, to there will be five Sundays in the month.
$\begin{array}{l}\therefore\text{ Required average }\\
=\Large\frac{510\times5+240\times25}{30}\\
=\Large\frac{8550}{30}\\
=285\end{array}$