The number of athletes must be 4 more than a common multiple of 5, 8, and 10.
Find the LCM of 5, 8, and 10, then add 4.
AGS Rule Box
LCM of 5, 8, 10=40 (since 40 is the smallest number divisible by 5, 8, and 10)
Total athletes=40 + 4 = 44
Final Answer: 44