- A16
- B15
- C18
- D21
Step-by-Step Solution
15 = 7 + 8, 18 = 5 + 6 + 7, 21 = 10 + 11. Powers of 2 such as 16 can never be written this way.
Answer: A) 16
Which of these numbers can NOT be written as a sum of two or more consecutive whole numbers (starting from 1 or more)?
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