Answer:
75 laps
Explanation:
"sixth day of the month" (meaning day number 6)
e = even (10 laps); o = odd (15 laps)
day 1 (o) day 2 (e) day 3 (o) day 4 (e) day 5 (o) day 6 (e)
15 laps 10 laps 15 laps 10 laps 15 laps 10 laps
Total: 15 + 10 + 15 + 10 + 15 + 10
Total: 75 laps
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