Multiple choice

What is the sum of the first four multiples of the least common multiple of 3 and 8?

  1. 260

  2. 256

  3. 240

  4. 220
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24 Multiples of 8 = 8, 16, 24 Least common multiple = 24 24 × 1 = 24, 24 × 2 = 48, 24 × 3 = 72, 24 × 4 = 96 24 + 48 + 72 + 96 = 240

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