Question

Since my birth I have had a birthday cake with candles,one for each year of my birthday,each year.


To date,I have 325 candles.hos old am I?​

Answer 1

The above question is wrong.

The correct question has 300 candles for the last birthday.

But if you had 325 candles the closest you will be 25 years old.

Given,Since my birth I have had a birthday cake with candles,one for each year of my birthday,each year.

Hence, let us assume you're n years old.

Now for 1 St birthday 1 candle.

For 2nd Birthday 2 Candles

For more birthday 1+2+...n candles.

Given, total number of candles is 325.

Hence,1-+2..n=325

L.hs. forms an A.p.

Hence,

n(n+1)/2=325

Or, n^2+n-650=0

But this has no definite solution.

I am guessing this question is wrong and it's 300 candles you had.

But if you had 325 candles the closest you will be 25 years old.