Mathematics · Reasoning
How many 7s are present in the following sequence of numbers which are both preceded and followed by perfect square numbers? 1 2 3 7 9 7 4 3 6 9 7 2 1 7 4 9 5 2 5 4 7 9 5 2 9 7 1 4 7 1
- 14✓
- 25
- 33
- 42
Correct answer
4
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