Question 581786
Principal P =	100									
Amount=	300									
years=n										
compounded (t)	1									
Rate =	9									
n = ln(FV / PV) / ln(1 + r)										
										
n=(ln(	300/100	)/ln(1+0.09)
n=(1.1)/ln1.09						
n=(	1.1	/	0.09							
n=  	12.75	years