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Red, Blue, and Yellow in Teens (Posted on 2004-06-22)

Find the next number: 124, 370, 205, 301, 517, 424, 826, 427, 871, ____

Averages of certain digits go a long way in this problem.

See The Solution Submitted by Victor Zapana

Rating: 4.4444 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: solution

| Comment 3 of 5 |

(In reply to solution by Gus)

I suppose that by the average of certain digits, VZ was refering to the average of the prime numbers' digits. Well... the sum is just double the average in this case.

Posted by Tristan on 2004-06-22 19:40:41

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