Answer:
Banks earn money on the difference between what they charge to borrow money and what it pays in interest.
Explanation:
Interest is the price attached to the time value of money. Interest is the reward received for lending money to others.
The interest you received on deposit is always lower than interest you pay on loan loan obtained, because for the bank to operative profitably, it must be able to make a net interest spread, net interest spread is the difference between the interest paid on deposits and the interest received on loan disbursed by financial institutions.
Another reason why interest paid on deposit is lower than interest on loan is that, banks like any other business must make profit from its business.
The higher interest charged by banks is to cater for the administrative expenses incurred for taking custody of the deposit. administrative expenses can be staff salaries and wages, security, building maintenance, vehicle maintenance e.t.c