Which interest rate is better?

there are two situations and you have to answer in terms of a consumer wanting to deposit money for saving, a businessman wanting to take a loan and a bank .

situation a

deposit rate 6%

lending rate 9%

situation b

deposit rate 12%

lending rate 15%

for each of the three users mentioned above which is the better situtation in the market and why........thank to all that answer

Which interest rate is better?va loan

For the consumer situation b is best: he earns more on his deposit.

For the business man situation a is best: he pays less interest.

For the bank it doesn%26#039;t matter: their margin is 3% in both situations.

Which interest rate is better?

loan

as a saver I take 12%at bank b, and get a loan at bank for 9%at bank a