A library has an average of 540 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:
Select the correct option:  A) 300  B) 276  C) 290  D) 285  E) none

Rationale: "since the month begins with sunday , to there will be five sundays in the month average required = ( 540 x 5 + 240 x 25 ) / 30 ) = 290 answer : option c"
Answer: C