Cc: lalasticlala

not for me

To answer this question one must know this:

1. You are not trying complete that money to hundred thousand, you are trying to reduce to 97k

First consider this: I borrowed 100k, bought a phone @ 97k my balance is 3k and now I give back 2k and take 1k with me leaving me with a debt of 98k.

49k+49k = 98k - 1k = 97k ( money for my handset). Ceteris paribus

Now if I give the 1k I have with me I will owe a debt of 97k which is the money for the phone I bought. Which brings everything to equilibrium

What I think in this problem is that we are not trying to complete the cash to 100k again after we have paid in 98k rather, we are trying to reduce the debt I.e we subtract not add.

BODMAS