Correct Answer - Option 3 : 148
Given:
A library has an average of 265 visitors on Sundays and 130 visitors on other days.
Formula used:
Average = (M1 × N1 + M2 × N2)/(M1 + M2)
Calculation:
Since the month begins with a Monday, so there will be four Sundays in the month.
M1 = Number of Sunday
M1 = 4
M2 = Remaining days
M2 = 26
N1 = Average visitors on Sundays
N1 = 265
N2 = Average visitors on Sundays
N2 = 130
Required average,
⇒ (265 x 4 + 130 x 26)/30
⇒ 4440/30
⇒ 148
∴ The average number of visitors per day 148