Question
A and B can fill a tank in 14 and 21 hours. Pipe C can
empty it in ‘x’ hours. All three open together fill the tank in 7 hours. Find x.Solution
Let the capacity of the tank = 84 liters (LCM of 14, 21, and 7)
Amount of water filled by pipe A in one hour = 84 ÷ 14 = 6 liters
Amount of water filled by pipe B in one hour = 84 ÷ 21 = 4 liters
Amount of water filled by pipes A, B and C together in one hour = 84 ÷ 7 = 12 liters
Amount of water taken by pipe C alone in one hour = 6 + 4 – 12 = 2 liters
Time taken by pipe C alone to empty the tank = 84 ÷ 2 = 42 hours
 In which of the following states is Asia's largest Compressed BioGas plant being inaugurated by the union minister?
Who is the Speaker of the 18th Legislative Assembly of Uttar Pradesh?
Which country was the first to approve the popular election of judges at all levels?
When is Micro, Small and Medium-sized Enterprises (MSMEs) Day observed in India?
Ancient Shiva Temple of Shukratal is situated in which district of Uttar Pradesh?
Where is the G 20 Foreign Ministers Meeting 2022 held on 7th - 8th July, 2022?
_______ country hosted the second round of 18th Western Pacific Naval Symposium(WPNS) to conduct affiliation and interoperability training alongside dis...
In the women’s light-fly 48kg-50kg boxing category Nikhat Zareen has clinched the _____medal in the Commonwealth Games, Birmingham?
Consider the following statement/s about a banking institution:
Statement : 1. State Bank of India (SBI) is the largest bank in India by assets.<...
Odia was given the status of a classical language in the year?
