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Five numbers x_1,x_2,x_3,x_4,x_5 are randomly selected from the numbers 1, 2, 3, ......., 18 and are arranged in the increasing order (x_1 < x_2 < x_3 < x_4 < x_5). The probability that x_2 = 7 and x_4 = 11 is : | Watch the step-by-step video solution for this NIMCET PYQ.