ps - lady

Question

Some lady has x dollars in her account. during a week the transactions are as deposit 50, draw 40, draw 70, deposit 80. If b is the amount in the account anytime during hte week, what is the relation between b and x
i b<x
iii b-20<x
iii b<=x-20
iv. b-60 <= x
iv |x-b|<= 20

Itzrevs · Answer

Some lady has x dollars in her account. during a week the transactions are as deposit 50, draw 40, draw 70, deposit 80. If b is the amount in the account anytime during hte week, what is the relation between b and x
i b<x
iii b-20<x
iii b<=x-20
iv. b-60 <= x
iv |x-b|<= 20 

Hmmm.. Kind of confused with this question, as I get 2 answers, but very different from Bhai & cool_jonny, Unless I am doing something wrong.

Ok I pick number 100 for x.

so the transactions will be 

Initial Amt = 100
Deposit 50 = 150
Draw 40 = 110
Draw 70 = 40
Deposit 80 = 120

Now B is any amount during the week, which means b lies between 40-150, atleast 40

Now when I look at the option

i b<x -- Yes possible as 40 < 100
iii b-20<x -- Yes possible as 40-20 < 100
iii b<=x-20 -- Yes possible as 40 < 100 - 20 
iv. b-60 <= x -- No, as we get negative balance
iv |x-b|<= 20 --- No in my case..

Now confused here.. What am I doing wrong?

ps - lady

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