self Maths Puzzle

1-(1/2!+2/3!+3/4!+4/5!+..........+2011/2012!)

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self Other Question

2,3,5,11,31,... ‎1) A, B, C, D, E are playing cards.... A says to B,if you give me three cards,you will hav as many as E has and if i give u 3 cards,u wil hav as many as D has.A and B together hav 10 cards more than wat D and E together hav....if B has 2cards more than wat C has n the total no.of cards b 133..den hw many cards does B have?