Answer:
9 years
Step-by-step explanation:
Given data
Principal= $10000
Rate= 3%
Final amount= $12700
The simple interest expression is given as
A=P(1+rt)
substitute
12700=10000(1+0.03*t)
12700=10000+300t
collect like terms
12700-10000= 300t
2700=300t
divide both sides by 300
t= 2700/300
t= 9 years