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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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Solution No Subject Comment 4 of 4 |
2+3+5+11+13+17+19= 70
  Posted by hoodat on 2020-08-04 12:10:39
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