A museum has an average of 510 visitors on Sunday and 240 on other days. Find the average number of visitors per day in a month of 30 days beginning with a Sunday.

Question: A museum has an average of 510 visitors on Sunday and 240 on other days. Find the average number of visitors per day in a month of 30 days beginning with a Sunday.

Solution:
Since, the month begins with a Sunday, so there will be 5 Sundays and 25 other days in this month.

Total visitors in Sundays = 5 × 510 = 2550
Total visitors in other days = 25 × 240 = 6000

∴ Total visiotors in the whole month = (2550 + 6000) = 8550

∴ Average number of visitors per day of the month = 8550/30 = 285