TCS
Company
Logical Reasoning
Number Series
Find out 1(1!)+2(2!)+3(3!)+2013(2013!).
Read Solution (Total 6)
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- 2014!-1
1(1!)=2!-1!
2(2!)=3!-2!
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.
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2013(2013!)=2014!-2013!
SO the remaining no's are 2014!-1 - 11 years agoHelpfull: Yes(26) No(0)
- Answer is 2014!-1
reason:
1(1!)=2!-1!
1(1!)+2(2!)=1+4=5=3!-1
1(1!)+2(2!)+3(3!)=1+4+18=23=4!-1
similarly upto 2013(2013!)= 2014!-1
- 11 years agoHelpfull: Yes(7) No(0)
- 2014!-2013!+4!-1!
- 11 years agoHelpfull: Yes(3) No(10)
- answer is 2013!
- 11 years agoHelpfull: Yes(1) No(8)
- 1 is the reminder
- 11 years agoHelpfull: Yes(1) No(7)
- remaining no's are 2014!-1
- 11 years agoHelpfull: Yes(0) No(0)
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