Task: Question Answering
Input (English): Question: Rs. 6000 is lent out in two parts. One part is lent at 7% p.a simple interest and the other is lent at 9% p.a simple interest. The total interest at the end of one year was Rs. 450. Find the ratio of the amounts lent at the lower rate and higher rate of interest?

 Option A: 9:3

 Option B: 9:5

 Option C: 5:8

 Option D: 5:4

 Option E: 9:2
Output (English): Option A