The following table gives information of panchayat elections held in six villages P, Q, R, S, T and U. Village     Total number of votes (in hundreds) Votes polled (in %) Valid votes (in %) P 50 80 80 Q 60 75 80 R 100 65 65 S 80 60 70 T 60 80 90 U 40 90 60 Hint :1) percentage of votes polled =$\frac{\text{Total votes polled}}{\text{Total number of votes}}×100$ 2) percentage of valid votes=$\frac{\text{Total valid votes}}{\text{Total votes polled}}×100$ Find the ratio of invalid votes of village R to that of village U ?

455 : 268 321 : 107 455 : 288 423 : 755

455 : 288