Aptitude - Average - Discussion

Guys, please note the last line of question " a month of 30 days beginning with a Sunday". It is clear that the month begins with Sunday.

Further, In 4 weeks we have (7*4= 28 days). Here we have 4 Sundays.
Again, In remaining remain 2 days, we have one Sunday and one Monday.
Therefore, the total number of Sunday= 5 (4+1).
Remaining other days= 25.

The required avg. Visitors per day in a month = (510*5+ 240* 25)/ 30.
= (2550+6000)/ 30.
= 8550/30.
= 285 -> answer.
I hope that you guys got it.

(510*5+240 * 25).
= 2550+6000,
= 8550/30,
= 285.

(510 * 5 + 240 * 25)/30.
= 2550 + 6000.
= 8550/30.
= 285.

@Sam.

Average visitors per day = Total sum of all visitors in the given month/number of days in that month.

@Naina.

In given question, 30 days are mentioned, but according to you not every month has five Sundays but if you noticed that month has started from Sunday when the month started from Sunday it has five Sunday in that month.

Hope you get cleared with that question.

@All. Not all months with 30 days have 5 Sundays.

What if there are 4 Sundays in a month of 30 days, then the answer will be 276.

@Sam.

Average visitors per day = Total sum of all visitors in the given month/number of days in that month.

Hey, everyone! what if the month has 31 days? There is a possibility of that as well! right?

Can someone please explain?

@Chandra.

In the question itself, it is revealed that first day is Sunday, so there will be five Sundays and five Mondays.

So the number of visitors on Sundays =510 * 5.
Number of visitors on Mondays = 240 * 5 * 1.
Number of visitors on remaining four days = 240 * 5 * 4.

So, avg num of visitors per day = 8555/30 = 285 visitors.

They asked for avg visitors per day in a month but we found the avg visitors for the whole month. I'm confused. Please anyone clear this.