Quote:
On any given Saturday, flights arrive at XYZ airport every hour, for 24 hours. The average number of flights arriving at XYZ airport on any Saturday is a multiple of 12. Is the total number of flights that arrived on a Saturday > 180?
The question stem states that flights arrive every hour for 24 hours and that the average of the total number of flights arriving on any Saturday is a multiple of 12.
It doesn't say that 12 flights arrive every hour. So, it could be anything which is a multiple of 12, e.g. 12, 24, 36, and so on.
Now in stmt 1, its given that the median is 17. This means that the first half of the day sees fewer than 17 flights per hour and the second half gets more than 17 flights per hour (do not confuse 'median' with 'average'). So, even if we keep it to the very minimum, i,e. 1 flight per hour for the first half of the day and 17 flights per hour for the second half of the day, we still get a figure(232) > 180.
Hope all the queries could be satisfied here.
Please correct me if I'm wrong anywhere.