Answer:
Time= 4 years
Step-by-step explanation:
Giving the following information:
Principal (P)= $12,000
Interest rate (r)= 10% = 0.10
Interest earned (I)= $4,800
To calculate the time required to gain $4,800 interest, we need to use the following formula:
T= I / (P*r)
T= 4,800/(12,000*0.1)
T= 4 years