A library has an average of 538 visitors on Sundays and 237 on other days. The average number of visitors (approximate to the nearest integer) per day in a month of 31 days beginning with a Monday is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 276.
We know that week has 7 days of which 6 days have the same number of visitors i.e., 237 and Sunday has 528 visitors.
Total number of visitors in a week at the library = (237 × 6) + 528 = 1960
In a month of 31 days starting with Monday, 4 weeks would be present along with Monday, Tuesday, and Wednesday as extra days.
Total visitors in a month at the library = (1960 × 4) + (237 × 3) = 7840 + 711 = 8551
Average number of visitors = 8551 ÷ 31 = 276 (approximated to the nearest integer place).