I have folded one of the pages randomly of a book . The sum of the page numbers except the page which is folded is 15000. what are the pages that are folded?
What ? Can you answer better ?!!!
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Argghhh.. I am getting one equation at this......
what is it
If one page is folded that means x and the previous page of the same leaf is x-1 Forming an arithmetic progression for sum of consecutive numbers: n(n+1)/2 = 15000 + x + x-1 Understand this? :)
ya but how would u solve it
Yes..That's what has been boggling my mind for some hours now... Is there anything else given in the question? We need to get another equation! :D
sorry but nothing else was given in it but I am knowing the ans its 25 & 26
Tag some people see if they can help you or not! :D Tag them by putting '@'*theirusername* :)
i dont know how to tag someone
@Ayushi2103 ^ LIKE THAT! :D
but where to type it
ok i got it thanx
@goformit100
Try this: 15000 = (n-2)/2 * [a + (n-2 -1)d] where a=1,d=1 :D
does this work
I think so.. Because the sum is 15000 without including 2 pages so n-2 :D
i got the solution n(n+1)/2=>15000 by hit and trial 1+2+3...+173=15051 x+x+1=15051-15000 2x+1=51 2x=50 x=25 x+1=26
thanx for giving me the clue and helping me with it
Oh Awesome! :D
:)
we ll meet later on cauz i wanna go bye
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