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

A library has an average number of 510 visitor on Sunday and 240 on other days. The average number of visitors per day in a month of 30 days beginning with Sunday is :
[A]285
[B]290
[C]295
[D]300

285
That month will have 5 sundays.
∴ Required average =
= \frac{5 \times 510 + 25 \times 240}{30}
= \frac{2550+6000}{30}
= \frac{8550}{30} = 285
Hence option [A] is correct answer.

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