A factory employs 130 workers on Fridays and 250 workers on other days. If a month has 30 days and starts on a Friday, what is the average number of workers per day over the month?

Question: A factory employs 130 workers on Fridays and 250 workers on other days. If a month has 30 days and starts on a Friday, what is the average number of workers per day over the month?

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

Total workers on Fridays = 5 × 130 = 650
Total workers on other days = 25 × 250 = 6250

∴ Total workers in the whole month = (650 + 6250) = 6900

∴ Average number of workers per day of the month = 6900/30 = 230