Question

If I put $ 1500 into my savings account and earned $ 180 of interest at 4 % simple interest, how long was my money in the bank?

Answer 1

I=PRT
P for Principle Amount
R for Rate
T for Time in years
Substitute:
180=1500×0.04×T
180=60T
3=T
It was in the bank for 3 years.