Time & Work · built from real SSC papers

Time & Work, the Fast Way

Take the total work as the LCM of the times, turn each worker (or pipe) into a simple per-day rate, and add. The same idea cracks workers, men-days and pipes & cisterns. Pick any topic — nothing is locked.

6 topics · every exam question type

🛠️1. Work & Time BasicsTotal work = LCM of times; add the rates; fraction of work done2 types ⚡2. Efficiency & WagesFaster worker, less time; men vs women; sharing the pay3 types 👷3. Men · Days · HoursThe M·D·H/W chain rule for scaling workers and time1 type 🔄4. Three, Leaving & AlternateThree together, someone joins/leaves, alternate-day working3 types 🚰5. Pipes & Cisterns — BasicsInlet − outlet net fill, two inlets together, three inlets3 types 🛁6. Pipes & Cisterns — AdvancedPipe closed mid-way, leaks, litres/capacity, alternate opening5 types