A library has an average of 510 visitors on Sundays and 240 on other day. The average number of visitors in a month of 15 days starting with sunday is	Choose the most appropriate option:  A) 280  B) 285  C) 290  D) 295  E) 570
Explanation:   As the month begin with sunday, so there will be five sundays in the month. So result will be:   =(510×5+240×25/15)=(8550/15)= 
<gadget id="calculator">(8550/15)</gadget>
<output>570</output>
570   Answer: Option 570
<result>E</result>
A library has an average of 510 visitors on Sundays and 240 on other day. The average number of visitors in a month of 15 days starting with sunday is