Answer
19 years
Explanation:
as
simple intrest= p*r*t/100 p=principal r= rate t=time
amount of intrest for one year = 14000*12*1/100=1680
check how much money is in between the principal and the amount needed
45920-14000=31920
and divide it by the intrest of one year= 31920/1680
and the answer is the amount of years= 19 yrs