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Algebra

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26 Dec 2006 12:17:27 IST

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There are N boxes, each containing at most r balls. If the number of boxes containing, at least 1 ball is N1, at least 2 balls is N2, at least 3 balls is N3, at least 4 balls is N4, at least 5 balls is N5 .........................& at least r balls is Nr,

then find out ( if possible ) the total number of balls contained in these N boxes?

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Comments (7)

usha_school

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Joined: 25 Dec 2006

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26 Dec 2006 20:09:31 IST

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hi i am ram kumar i think it should be

r(r+1)/2*(1-(r(r+1)/2

Titun

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Joined: 23 Dec 2006

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26 Dec 2006 21:34:41 IST

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The answer is short and simple and independent of r.

magia

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Joined: 26 Dec 2006

Posts: 50

26 Dec 2006 21:47:53 IST

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according to me it isnt possible to find the exact number of balls.

to explain myself:
N1 may contain : 1,2,3,...N balls
N2 may contain : 2,3,...,N balls
N3 may contain : 3,4,...,N balls
NN may contain :N balls

so the number of balls may lie between
N(N+1)/2 and NN

p.s ram kumar can you please tell me how you came to your conclusion?

Das Mukerjee

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27 Dec 2006 12:57:31 IST

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Hey, titun is the answer N1+N2+N3..............+Nr

magia

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Joined: 26 Dec 2006

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27 Dec 2006 14:07:15 IST

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ariyam i think N1, N2, etc are the names of the boxes

kartikAIR1

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Joined: 2 Mar 2012

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20 Mar 2012 00:23:44 IST

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I got this,

N₁+ N₂ + N₃+ N₄ +N₅+ .......................+ N_n

WIll b iitan

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20 Mar 2012 00:32:16 IST

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n1 +n2+n3+n4+.....+nr......!!!

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