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  • Which number will replace the question mark? |||| |---|--...
Multiple choice

Which number will replace the question mark?
|||| |---|---|---| |?|1|2| |21|22|40| |1|2|5| |20|23|43|

  1. 2

  2. 3

  3. 5

  4. 4

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 40 + (5-2) = 43  22 + (2-1) = 23   21 + (1-x) = 20  => x = 2

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