Question

William travels only on Saturdays and Sundays and has flown 400 miles this month. Jason travels every weekday and has flown 500 hundred miles this month. Who travels more miles per day for this month

Answer 1

Jason because he travels more often and he travels very WEEKDAY not weekend. 7 days(which is a fulll week) are the weekdays he travel

Answer 2

If you mean miles per day travelled,

William has travelled about 8 days (2 x 4).
Jason has travelled about 20 days (5 x 4).

William -> 400/8 ~ 40 miles/day

Jason -> 500/20 ~ 25 miles/day

so William has travelled more miles per day travelled