A library has an average of 140 visitors on Sundays and 80 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is :
Choose the correct answer: A) 90 B) 100 C) 105 D) 110 E) 125
Explanation:   Since the month begins with a Sunday, so there will be five Sundays in the month,   Required average = (140 * 5 + 80 * 25) / 30 = 2700/30= 
<gadget id="calculator">2700/30</gadget>
<output>90</output>
90   90nswer: 90) 90
<result>A</result>
A library has an average of 140 visitors on Sundays and 80 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is :