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:  Choose the correct choice from the following answers:
A) 250	B) 276	C) 280	D) 285	E) None
Since the month begins with sunday,to there will be five sundays in the month   Average required = (510x5 + 240x25 /30) = 8550/30= 
<gadget id="calculator">8550/30</gadget>
<output>285</output>
285   Answer: Option 285
<result>D</result>
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: