Answer:
The lending ability will increase by $2.25 billion.
Explanation:
The reserve requirement is given at 25%.
If federal reserve bank buys $3 billion in government securities, the total reserve will increase by $3 billion.
The excess reserve will be
=Increase in total reserve-required reserve
=$3 billion-25% of $3
=$(3 billion- .25*3) billion
=$(3-0.75) billion
=$2.25 billion
