how is this possible?

2
guys ,carefully read the question

I have 50 rupees on my hand
then

MONEY  SPEND:                                      REMAINING MONEY:

20                                                                      30
15                                                                      15
9                                                                        6   
6                                                                         0

TOTAL MONEY SPEND =50
TOTAL REMAINING MONEY=51

how the one rupee come into this total

share your answers with explanation
                                                                      
MUKIL, proud to be a member of Vidyarthiplus.com (V+) - Online Students Community since Mar 2013.
#But u can only spend what you have so if you only have 50 how can expenditure be 51? @mukil
"It is very easy to defeat someone, But It's very hard to win someone"                                                                                        - Dr.A.P.J.Abdul Kalam
it is a nice math trick!!!
how???
If we add remaining money ,we get 51..
now if we add first two numbers of remaining money(30 and 15),we get 45..
.Now ,how much money we have in our hand??its 50...what is 50-45???it is 5..
.but the next number in the remaining money column is 6...
So the 1 in the answer comes from 6...
by the by, we should never add the remaining money...we should find the remaining money by subtracting the total spent from the total money...
“Don't take rest after your first victory because if you fail in second, more lips are waiting to say that your first victory was just luck.”-Dr. A P J Abdul Kalam.