An amount of Rs. 100000 is invested in two types of shares. The first yields an interest of 9% p.a and the second, 11% p.a. If the total interest at the end of one year is 9 3/5 %, then the amount invested at 11% was?	Choose the correct choice
A) 23777 B) 30000 C) 29977 D) 26777 E) 19871
Let the sum invested at 9% be Rs. x and that invested at 11% be Rs. (100000 - x). Then,   (x * 9 * 1)/100 + [(100000 - x) * 11 * 1]/100 = (100000 * 48/5 * 1/100)   (9x + 1100000 - 11x) = 960000   x = 70000   Sum invested at 9% = Rs. 70000   Sum invested at 11% = Rs. (100000 - 70000) = Rs. 30000.   Answer: 30000
<result>B</result>
An amount of Rs. 100000 is invested in two types of shares. The first yields an interest of 9% p.a and the second, 11% p.a. If the total interest at the end of one year is 9 3/5 %, then the amount invested at 11% was?