b. Ahmed deposited a sum of money in a saving account at the rate of 5% per annum and earns $120 as simple interest in 3 years. Find the sum of money received at the end of 3 years.

b Ahmed deposited a sum of money in a saving account at the rate of 5 per annum and earns 120 as simple interest in 3 years Find the sum of money received at th class=