Pipes — Filling & Emptying Rates
Pipes & Cisterns — भरना plus, खाली करना minus
title
Pipes — Filling & Emptying Rates
- Pipes & Cisterns
- Pipes — Filling & Emptying Rates
Hello दोस्तों! MeraExam की एक और class में आपका स्वागत है। आज का topic है — Pipes & Cisterns — भरना plus, खाली करना minus। बिलकुल zero से, एकदम आसान भाषा में। चलिए शुरू करते हैं!
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Interactive — learn by doing. Drag, tap and explore to build the intuition.
Pipes fill; outlets drain
Call the whole job LCM(times) units so each rate is a whole number. Add the per-day units, then divide the job by the combined rate.
A
3 units/unit-time
B
2 units/unit-time
job = 30 units; rate = 3 − 2 = 1/…
30 hours
Combined they do 1 units each hour, so 30 ÷ 1 = 30.
💡 The LCM trick kills all fractions — that's its whole point.