A library has an average number of 510 visitors on Sunday and 240 on other days The average number ...........

Quantitative Aptitude (Hr Patwari ) Average

. A library has an average number of 510 visitors on Sunday and 240 on other days. The average number of visitors per day in a month of 30 days beginning with Sunday is :

300

290

285

None of these

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Explanation:

Since the month begins with a Sunday, so there will be five Sundays in the month.
Average number of visitors on other days (except sundays) 240
therefor number of visitors = 240x25=6000
Average number of visitors on sundays = 510
therefore number of visitors = 510x5= 2550
total number of visitors in 30 days = 6000+2550= 8550
Average number of visitors in 30 days = 8550/30 = 285