Multiple choice general knowledge math & puzzles

1 ^ 2 ^ 3 ^ 4

  1. 4096

  2. 32

  3. 1

  4. 1024
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The caret (^) symbol typically means XOR (exclusive OR) in programming and computer science. XOR is associative and commutative: 1 XOR 2 XOR 3 XOR 4. In binary: 01 XOR 10 = 11, 11 XOR 11 = 00, 00 XOR 100 = 100. But XOR has a special property: a XOR a = 0, and 0 XOR b = b. So pairs cancel out: 1 XOR 2 XOR 1 XOR 2 = 0.

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