IF the cars sold by A and B are all found to be in perfect order, but the cars sold by C were found to be defective to the extent of 15% ,10%,8% and 6% respectively In Jan,Feb,Mar and Apr 2016 then what is the ratio of non defective cars sold by C to that of all cars sold by A and B during Jan mar 2016?

Options

A. `177:1400`
B. `489:1300`
C. `255:1348`
D. `384:1385`

Answer

2