Question
Pipe ‘A’ and pipe ‘B’,
together can fill 20% of a tank in 8 hours while pipe ‘C’ takes 50 hours to empty it. Pipe ‘A’ and pipe ‘B’ were opened together. After 25 hours, pipe ‘C’ is also opened. Find the total time taken to fill the empty tank this way.Solution
Time taken by pipe ‘A’ and pipe ‘B’, together to fill the tank = 8/0.20 = 40 hours
Let the total capacity of tank = 200 units
Efficiency of pipe (A + B) = 200/40 = 5 units/hour
Efficiency of pipe ‘C’ = 200/50 = 4 units/hour
Tank filled by pipe (A + B) in 25 hours = 25 × 5 = 125 units
Time taken by all three pipes to fill the remaining tank = (200 – 125)/(5 – 4) = 75 hrs
Total time taken = 25 + 75 = 100 hours
More Pipes and cisterns Questions
A programming language for which most of its implementations execute instructions directly, without previously compiling a program into machine-la...
Which among the following does not form a part of ACID properties with regard to DBMS?
What does the term cybersecurity hygiene refer to?
To delete the selected item permanently, which of the following shortcut key combination should be used?
___________ is a hard copy of document.
When we say “to boot a computer”, what does it mean?
What is the term for a machine that contacts a server for information?
A personal computer contains all the following except
What type of topology is found in a WIRELESS LAN?
Which of the following is the largest storage unit.
Relevant for Exams:
