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Four numbers are chosen at random (witho...

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 `1/(85)` . 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}.

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From set S = {1, 2, 3, 4, 5, 6 ....... , 20} four numbers are chosen without replacement. Statement-1 : The probability that the chosen numbers when arranged in some order will form an AP is 1/85 Statement-2 : If the four chosen numbers form an AP then the set of all possible values of common difference is {1,2,3,4,5} .

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