ISEE Word Problems Question 340: Answer and Explanation
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Question: 340
7. What is the least common multiple of 9, 2, and 5?
- A. 45
- B. 60
- C. 90
- D. 180
Correct Answer: C
Explanation:
C is correct. The least common multiple of a group of numbers is the least whole number (greater than 0) that is a multiple of all of the numbers. The least common multiple of 9, 2 and 5 is 90 (9 × 10, 2 × 45, 5 × 18).