- A24 min
- B20 min
- C26 min
- D16 min
Step-by-Step Solution
In 4 min: . B fills in min. (26 min is 30 − 4.)
Answer: B) 20 min
Tap A fills a tank in 20 minutes and tap B in 30 minutes. Both are opened together, but after 4 minutes tap A breaks down. How much longer does B take to fill the tank?
Competition practicePipes & Cisterns
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Pipes & Cisterns practice questions
More Pipes & Cisterns practice
All four pipes in the figure are opened together on the empty tank. How long does it…A swimming pool at a club in Bengaluru has 4 inlets that each fill it in 12 hours and 2…Pipe A alone fills a tank in 5 hours and pipe B alone in 8 hours. If both are opened…A pipe can fill a tank in 15 hours. Because of a leak, it fills only 3/5 of the tank in…A pipe can fill a tank in 12 hours. It worked alone for a while, then a second pipe that…