total increase in deposits

Bank A has an increase in deposits of $20 million dollars and all bank reserve requirements are 10%. Bank A loans out the full amount of the deposit increase that is allowed. This amount winds up deposited in Bank B. Bank B lends out the full amount possible as well, and this amount winds up deposited in Bank C. What is the total increase in deposits resulting from these three banks? (Points : 10)
$48.00 million
$54.20 million
$56.33 million
$57.10 million
$60.00 million