Question 437937
In both cases, the amount of interest earned will be proportional to the principal.  
In general, the interest is given by the formula
I = P((1+r)^n - 1), where P is the original principal, r is the interest rate, and t the term
Since r and n are the same, we can write
I = k*P, where k=constant
One account starts with $1000, so 
I1 = 1000*k
The other account starts with $3000, so
I2 = 3000*k
The ratio of the interest earned is 3:1