Question

A library has an average of 510 visitors on Sundays and 240 on other day. The average number of visitors in a month of 30 days starting with sunday is_________.

• A. 280
• B. 295
• C. 290
• D. 285

Answer 1

The correct option is D 285

As the month begin with sunday, so there will be five sundays in the month. So result will be:

Number of Sunday in a month of 30 days= 5
Total number of visitors on Sunday= 510×5=2550

Total visitors on ther days= 240×25= 6000

Monthly Average:
$=\frac{2550+6000}{30}=\frac{8550}{30}=285$