If you can solve this riddle then you are definitely exceptional... As a matter of fact, I am still trying to and I thought sharing here might hasten me getting the answer. So this is it...

I have N50

Spent(N)..........................Balance(N)
20........................................... 30
15.,.............................................15
9................................................6
6................................................0
...….…..................... ………
50............................................51.
......... ..........

Where did this N1 come from ?

Nothing tough about this, rather logical


Now, addition of remaining amount has nothing to do with addition of money spent..

Okay see better explanation

Total money is #50

Spent. Remaining
1 49.
2 47
47 0


So here only we get addition of 49+47= 96.

Whereas total money was N50, so it's not valid to add money remaining.

Okonjo Iweala has answered, she is an accountant i guess

okonja:
Nothing tough about this, rather logical


Now, addition of remaining amount has nothing to do with addition of money spent..

Okay see better explanation

Total money is #50

Spent. Remaining
1 49.
2 47
47 0


So here only we get addition of 49+47= 96.

Whereas total money was N50, so it's not valid to add money remaining.

I dnt understand ur mathematical illustration

MykLANNY:
I dnt understand ur mathematical illustration

will that give me a job?

MykLANNY:
I dnt understand ur mathematical illustration

You don't to add remaining money. Just add total money spent separately

One cannot simply add a bunch of payments together and expect them to total an original amount of circulated cash.

World's toughest riddle without answer!

I have N50

Spent(N) Balance(N)
20 30
15 15
9 6
6 0
...….… ………
50 51
......... ..........

Where did this N1 come from?? ?���
Comment:
9 is a magical sequence in addition atimes.
Had it been u spent N10 in place of N9, both the spent and balance columns will rhyme & agree to N50.
20 - 30
15 - 15
10 - 5
5 - 0
[50]- [50]
As long as the amount utilized is tantamount to the principal amount, u r balanced. In this type of cases u ignore the balance column and use the spent column to balance ur books.