Answer:
The supply of money is directly increased by $4 million and the money-creating potential of the commercial banking system is increased by an additional $12 million.
Explanation:
Total Money supply increased in question = $4 million + $12 million
Total Money supply increased in question = $16 million
Multiplier = 1 / Reserve Ratio
Multiplier = 1 / 0.25 = 54
Once the money is deposited, Money supply is increased by $4 Million.
Total money supply to be increased = Deposits * Multiplier
= 4 million * 4
= $16 Million