Four numbers are chosen at random (without replacement) from the set {1,2,3,….,20}. Statement-1: The probability that the chosen numbers when arranged in some order will form an AP is 851. Statement-2: If the four chosen numbers from an AP, then the set of all possible values of common difference is {±1,±2,±3,±4,±5}.
Held on 30 Apr 2010 · Verified 6 Jul 2026.
Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation for Statement-1
Statement-1 is true, Statement-2 is false
Statement-1 is false, Statement-2 is true
Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation for Statement-1
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