Mr Fodor invested an amount in two separate finance firms in the ratio 3:5 his profit was calculated in 8% and 10% respectively . after a year he recieved a profit an interest of 92000. caculate the total amount invested

3/8 at 8% 5/8ths at 10%

3/8 x * .08 + 5/8 x *.10 = 92000 solve for x