https://preparationpoint.info/solved-past-papers-mcqs/ppsc-past-papers/ppsc-past-papers-2018/model-paper-39-junior-clerk-bs-11-in-punjab-police-department-2018-199-19/a-car-salesman-sells-42-red-cars-and-14-green-cars-what-is-ratio-of-red-cars-to-green-cars-sold/