https://preparationpoint.info/mathematics-mcqs/basic-maths-mcqs/abc-can-do-a-work-in-81416-days-respectively-a-does-the-work-for-the-first-2-days-b-continues-from-it-and-finishes-2-3rd-of-the-remaining-work-c-finishes-the-remaining-work-how-many-days-woul/