Question
Tap P can fill a water tank in 15 minutes, Tap Q can
fill it in 20 minutes, and Tap R can empty half of the tank in 15 minutes. Now, if all the taps, P, Q, and R, are opened simultaneously, with the unique ability that Tap R starts to empty the tank after the first minute, how long will it take to completely fill the water tankSolution
ATQ,
Taps P and Q fill the tank in the first minute:
After 1 minute, Taps P, Q, and R work together:
Remaining work = 1 - 7/60 = 53/60
Time to complete remaining work =(53/60)/(1/12) = 10.6 minutes Total time = 1minute + 10.6minutes = 11 minutes 36 seconds.
What is the targeted GHG intensity reduction by 2035 under the IMO’s Net-Zero Framework?
Which state launched the Gemini-powered agricultural network in collaboration with Google Cloud?
- Which company secured the highest number of 5G spectrum licenses in India’s recent auction?
Which award was conferred on ISRO Chairman Dr. V. Narayanan for his contributions to space science in 2025?Â
Which country remained India’s largest FDI source for the seventh consecutive year in FY25?Â
- Which country launched the Shenzhou-20 mission to its space station?
Which country recently launched the AI for Development (AI4D) Initiative to expand artificial intelligence applications in agriculture and healthcare?
What is the notice period required to introduce a private member's bill in the Lok Sabha?Â
Which city recorded the world’s highest AQI at 1,067, prompting a “green lockdown”?
What is the primary objective of the Unified Lending Interface (ULI) introduced by RBI?
Relevant for Exams:
