A library has an average of 510 visitors on Sundays and 240 on other day. The average number of visitors in a month of 30 days starting with sunday is	Choose the correct choice:
A) 280
B) 285
C) 290
D) 295
E) 275
Explanation:   As the month begin with sunday, so there will be five sundays in the month. So result will be:   =(510×5+240×25 / 30)=(8550 / 30)= 
<gadget id="calculator">(8550 / 30)</gadget>
<output>285</output>
285   Option 285
<result>B</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 30 days starting with sunday is