Mathematics · Pipes and Cisterns
One pipe can fill a tank in 10 minutes while another pipe can empty the completely filled tank in 20 minutes. If both pipes are operated together on an empty tank, how long (in minutes) will it take to fill the tank completely?
- 123
- 221
- 322
- 420✓
Correct answer
20
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Pipes and Cisterns?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Pipes and Cisterns