A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a 30-day month beginning on a Sunday is:
A
300
B
290
C
285
D
none of these
Correct Option:
C
Explanation
A 30-day month beginning Sunday contains 5 Sundays. Total visitors = 5×510 + 25×240 = 8550. Average = 8550/30 = 285.