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1! + 2! + ……. + 50!=?
a)3.1035*10^64 b)2.1021*10^65 c)3.1035*10^63 d)3.1035*10^62

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TCS Other Question

what is the reminder when 6^17+17^6 is divided by 7 ?
a) 3 b) 0 c) 6 d) 1
locks are chosen randomly on a chessboard.What is the probability that they are in the same diagonal?