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can anyone tell me asap which puzzles shall we sove? solved or unsolved in m4maths? someone says go for solved while others go for unsolved, bt m nt getting solved puzzles here,, plz help me, i hv my apti on tuesday :(

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TCS Other Question

1(1!)+2(2!)+------+2012(2012!)=? a person starts write all 4 digits number how many times he has written the digit 2 ??