Question
Pipe ‘A’ can fill a tank in 25 hours while pipe
‘B’ can empty it in 30 hours. They were operated on alternate hours starting with pipe ‘A’. Find the percentage of tank filled this way in 60 hours.Solution
Let the total capacity of tank be 150 units Efficiency of pipe ‘A’ = 150/25 = 6 units/hour Efficiency of pipe ‘B’ = 150/30 = 5 units/hour Tank filled in 2 hours = (6 – 5) = 1 units Therefore, tank filled in (2 × 30 = 60 hours) = 1 × 30 = 30 units Required percentage of tank filled = (30/150) × 100 = 20%
Statements:
All hotels are buses.
Some buses are cars.
All cars are trams.
Some trams are clouds.
Conclusions:
Statement
Only a few A is B
All A is C
No C is D
Conclusion
I) No A is D
II) All A being B is a possibil...
Statements:
All A are B
All B are C
Some C are D
Conclusion:
I. All B are A
II. Some D are A
Statements:
Some Venice are Godot.
Some Milan are Godot.
Some Italy are Milan.
Conclusions:
I. Some Venice are defini...
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be tru...
Statements:Some mugs are soaps.
Some soaps are taps.
Conclusions:I. Some taps are mugs.
II. No mugs is tap.
In the question below some statements are given followed by three conclusions I, II, and III. You have to take the given statements to be true even if ...
Statement:
I) Some pink are red
II) Some red are green
III) All green are yellow
IV) No yellow is blue
Conclusion:
Statements :
All sparrows are parrots.
No parrot is bird.
All birds are peacocks.
Conclusions:
I. Some birds are ...
- In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the two given statements to be tru...
Relevant for Exams:
