A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?
Choose the correct choice from the following choices:
A) 7:3	B) 4:9	C) 4:3	D) 2:3	E) 4:9
12:9   = 4:3   Answer:4:3
<result>C</result>
A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?