Answer:R=6% T=3yr T=2yr
Step-by-step explanation:
Simple interest=prt/100
I=prt/100
R=100×27/900×0.5
R=2700/450
R=6%
T=100×480/2000×6
T=48000/12000
T=3yrs
T=100×1080/4500×12
T=2yrs
