Question

A library has an average of 245 visitors on Sundays and 95 on other days. The average number of visitors per day in a month of
30 days beginning with a Sunday is:
O 105
O 110
O 120
O 125
​

Answer 1

Answer:

120

Step-by-step explanation:

Since the month begins with a Sunday, to there will be five Sundays in the month.

Required average = (245 * 5 + 95 * 25) / 30

= 3600 / 30

= 120

Answer 2

Answer:

Mean number of visitors per day is 120

Step-by-step explanation:

Given, average number of visitors on sundays = 245

and number of visitors on other days = 95

To find: average number of visitors per day in a 30 day month starting on sunday

If a month begins on a sunday, there may be 5 sundays and 25 other days (weekdays)

Therefore,  the mean number of visitors in a 30 day month = $\frac{245(5)+95(25)}{30}$  = $\frac{3600}{30}$

Therefore,  the mean number of visitors in a 30 day month = 120

Thus, the mean number of visitors per day in the library is 120

#SPJ3