On Sundays, a library receives an average of 510 visitors and 240 on other days. In a month of 30 days commencing on a Sunday, the average number of visits each day is:
A. 250
B. 276
C. 280
D. 285
Answer:D
On Sundays, a library receives an average of 510 visitors and 240 on other days. In a month of 30 days commencing on a Sunday, the average number of visits each day is:
A. 250 B. 276 C. 280 D. 285
Explanation: Because the month begins on a Sunday, the month will have five Sundays.510 x 5 + 240 x 25/30 = required average= 8550/30=285 %