Multiple choice general knowledge math & puzzles

In Roman numerals, the next term in the sequence LXIV, XXXVI, XVI, ____ is:

  1. II

  2. IV

  3. IX

  4. X
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sequence LXIV (64), XXXVI (36), XVI (16) follows the pattern of halving each term: 64, 36 (half of 72), 16 (half of 32). The pattern is actually squares being halved: 8²=64, 6²=36, 4²=16, so the next term is 2²=4, which is IV in Roman numerals. Option II (2) would be too small, while IX (9) and X (10) don't fit the pattern.

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