John goes for a jog every 3 days. He went for a jog on Monday, January 5. He went for his next jog on January 8. What was the date of the next Monday on which he went for a jog?
, 2015
Pick one
Solution
Since January 5 is a Monday and Mondays are 7 days apart, then January 12, 19 and 26 are also Mondays.
Since John goes for a run every 3 days, the dates in January on which he runs are January 5, 8, 11, 14, 17, 20, 23, 26, and 29.
The first of the Mondays on which John goes for a run after January 5 is January 26.
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