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As my birthday approaches I start to collect leaves - a little bizarre perhaps, but I enjoy it! On the first day of the month I collect one leaf, on the second day I collect two and so on. So by my birthday I will have collected 378 leaves altogether. On which day of the month is my birthday?
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suresh
Its on 28th.
right?
No barbie...Its not a correct answer...
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suresh
Oh.. sorry.:o
Its 27th of that month.
yes; 27 is the answer.
folllow the rule:
N(N+1)=2*total sum
Jainbrijesh and Barbie both of them correct...
The formula is n(n+1)/2(sum of first n numbers) = 378
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suresh