Which letter is missing from this sequence:

B C E G K Q S W

The answer is M.

Assigning numbers to each letter of the alphabet such that A=1, B=2,...,Z=26, the given letters produce:

2, 3, 5, 7, 11, 17, 19, 23

These are all prime numbers less than 26. The only one missing is 13 (=M).

Posted by fwaff on 2003-08-26 08:41:01