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Erase a prime (Posted on 2020-08-03) Difficulty: 2 of 5
Write down the first n primes.

Erase one of them and the mean of the remaining numbers is 10.

What number did you erase?

No Solution Yet Submitted by Jer    
Rating: 3.0000 (1 votes)

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Instant solution | Comment 2 of 4 |

when  the puzzle was on the reviewing board I saw that it is  d1 puzzle

  Posted by Ady TZIDON on 2020-08-04 07:55:53
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