I'm having trouble solving a question in which there is a 6x6 grid pattern. One of the rows have been erased and I need to find what number or letter is in the grid square with the question mark.

  • 2 A 4 A 6 A
  • C B 4 B 6 B
  • 4 4 4 C 6 C
  •   ?
  • 6 6 6 6 6 E
  • K J I H G F

The answer is supposed to be e, yet I cannot find why that would be the answer. Please help.

The grid

  • 1
    $\begingroup$ Where did you find this puzzle? Puzzles without proper attribution can sometimes be deleted $\endgroup$
    – hexomino
    Commented Jul 6, 2020 at 11:19
  • $\begingroup$ @hexomino It was in a numerical reasoning selective school practice test. $\endgroup$ Commented Jul 6, 2020 at 11:24

1 Answer 1



If we highlight bands as in the following diagram a pattern becomes more clear
enter image description here
Notice that in the yellow highlighted bands we have the first few even numbers, beginning with 2 in the top-left corner, then all 4s, then all 6s.
In between, for the non-highlighted bands we have the first few letters of the alphabet. This suggests the rest of the grid should be filled in as follows
enter image description here


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