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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: pls answer this
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[Post New]18 May 2008 21:08:34 IST
    Subject: pls answer this
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asish (328)

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 The remainder when x=1! + 2! + 3! + 4!+ .....+ 100! is divided by 240 is


(a)153               (b)33


 (c)73                  (d)187


pls answer with explanation


 
    
[Post New]18 May 2008 21:10:21 IST
    Subject: pls answer this
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mukundmadhav (460)

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Everyterm from 6! onwards is divisible by 240
The sum of the first five terms is 153
So answer is 153
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[Post New]18 May 2008 21:16:38 IST
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RyuAmakusa (709)

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a 153 exp comming up ok ans is already there

 
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[Post New]18 May 2008 21:24:54 IST
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asish (328)

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thank u guys
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