Question

A library has an average of $520$ 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 1

The correct option is D $285$

As the month begins with the sunday, so there will 5 sundays in a month

So, average number of visitors $=\frac{510\times 5+240\times 25}{30}=\frac{8550}{30}=285$