Answer:
The maximum deposit is $4,000 billion.
Step-by-step explanation:
Consider the provided information.
It is given that the required reserve ratio of 10 percent for all banks.
It is given that total bank reserves of $400 billion.
Let the maximum deposit is x.
Therefore, 10% of x = $400 billion
[tex]\frac{10}{100}\times x=\$400\text{ billion}[/tex]
[tex]x=\frac{100}{10}\times \$400\text{ billion}[/tex]
[tex]x=10\times \$400\text{ billion}[/tex]
[tex]x=\$4000\text{ billion}[/tex]
Hence, the maximum deposit is $4,000 billion.