Answer:
b. 20%
Explanation:
First we have to calculate the reserves which were required by the Bank of Mesquite to be kept:
Reserves of the bank=required reserves+excess reserves
550,000=required reserves+150,000
Required reserve=$400,000
Now we have to calculate the required reserve ratio which shall be calculated as follows:
Required reserve ratio=Required reserve/deposits of the bank
=400,000/2,000,000
=20%
So based on the above calculations, the answer is b. 20%