Answer each of the following questions.
a. Bank reserves are 100, the public holds 200 in currency, and the desired re¬serve-deposit ratio is 0.25. Find deposits and the money supply.
b. The money supply is 500 and currency held by the public equals bank re¬serves. The desired reserve-deposit ratio is 0.25. Find currency held by the public and bank reserves.
c. The money supply is 1,250, of which 250 is currency held by the public. Bank reserves are 100. Find the desired reserve-deposit ratio.