Directions: The given caselet shows the number of vehicles (cars + bikes) sold in a company.

The number of cars sold in January is 45 less than that in February. The ratio between the number of bikes and cars sold in February is 16: 9. The number of bikes sold in March is 45 more than that in February. In March, the number of cars sold was 28.57% less than the number of bikes sold. The number of bikes sold in January is 50 more than that in March. The average number of vehicles sold in January is 400.