Task: Question Answering
Input (English): Problem: john invests $ x at the semi - annual constant compounded rate of 2 percent and also does $ 8,000 at the quarterly constant compounded rate of 4 percent . if the interests are the same after 1 year , what is the value of x ? ? 
Options: a ) 10000 , b ) 12000 , c ) 16160.8 , d ) 14000 , e ) 15000
Output (English): c