Question 265497
She starts off with $600.00 in the bank.


She subtracts 5 * $15.00 = $75.00.


She is left with $525.00 in the bank.


She deposits her paycheck and is left with $750.00 in the bank.


Her paycheck must have been $750.00 minus $525.00 = $225.00


That's because $525.00 plus $225.00 = $750.00


She had promised to donate 25% of her paycheck to charity.


This means she had promised to donate .25 * $225.00 = $56.25 to charity.


She needs to withdraw $56.25 from her bank account.


She is then left with $750.00 minus $56.25 = $693.75 in her bank account.


The answer to the question is that she needs to withdraw $56.25 from savings.


Looking at it another way:


She had $525.00 in the bank when she got her paycheck.


If she paid the $56.25 right away, then she would only have been able to deposit $225.00 - $56.25 = $168.75 which would have brought her bank total up to $525.00 + $168.75 = $693.75


Either way she pays the $56.25 and is left with $693.75 in the bank after all is done.