In how many years, Rs. 150 will produce the same interest at 6% as Rs. 800 produce in 2 years at 4½% ?  Choose the correct answer.
A) 4 years  B) 6 years  C) 8 years  D) 9 years  E) 10 years
Explanation:   Let Simple Interest for Rs.150 at 6% for n years = Simple Interest for Rs.800 at 4½ % for 2 years   (150×6×n)/100 = (800 × (9/2) × 2)/100   (150 × 6 × n) = (800 × (9/2) × 2   150 × 6 × n = 800 ×9   3 × 6 × n = 16 × 9   6 × n = 16 × 3   2 × n = 16   n = 8 years   Answer: Option 8 years
<result>C</result>
In how many years, Rs. 150 will produce the same interest at 6% as Rs. 800 produce in 2 years at 4½% ?