📅 NSB Middle School 2021🎓 MS🔄 Round 10#️⃣ Question 14❓ TOSS-UP✍️ Short Answer
In the set of integers from 1 through 21, inclusive, let A be the set of those that are odd, and let B be the set of those that are multiples of 5. How many elements are in A union B?
✔️Answer:13
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