Question

3 year compound interest and 2 year simple interest ratio 23:7.Rate of interest

Answer 1

Answer:

200/7% (imp.)

step by step explanation:

pr^2(300+r)/100^3 : pr^2/100^2=23 : 7

(300+ r)/100 = 23/7

2100 + 7r = 2300

7r = 200 => r = 200/ 7%