self Maths Puzzle

i just want to knw ...hw to get placement in wipro...m clearly telling u guys i m not selected in TCS ..m very disappointed....m very frustrated ...m not getting nething..plz guide me frndz..hw sud i prepare for wipro campus drive !!

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self Other Question

2 7 3 11 5 31 6....? If six coins are flipped simultaneously, the probability of getting at least one pair is closest to: