Question
An inlet pipe can fill an empty tank in 36 minutes
whereas an outlet pipe can empty the fully filled tank in 54 minutes. Find the time taken by both the pipes together to fill half of the empty tank.Solution
Let the total capacity of tank be 108 litres (LCM of 36 and 54)
Efficiency of inlet pipe = (108/36) = 3 litres/minute
Efficiency of outlet pipe = (108/54) = -2 litres/minute
Required time = (0.5 × 108) ÷ (3 - 2) = 54 minutes
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Only a few A are B.
No B is C.
All C are Z.
Conclusions:
I. Some A can be B.
II. Some C can...
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Some tables are chairs.
No chair is a book.
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b. Some rats are lions
Conclusions:I. Some dogs are not lions
II. Some lions are not dogs
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No Book is Pencil.
Some Pencil are Eraser.
Conclusion:
I. Some Eraser can be Pen.<...
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All pencils are books.
All pencils are glasses.
No glass is a jug.
Conclusions: I....
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Some Cable are Table
No Table are Chair
All Chair are Rack
Conclusions:
I) Â Some Cable are not Rack...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
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Only a few Triangle are Circle.
Some Circle are Square.
Only Square are Rectangle .
No Circle is a Cubo...
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Some TVs are laptops.
Some laptops are computers.
All computers are mobiles.
All mobiles are radios.
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- Statements:
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Mostly minute is hour
All hour is time
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I. Some time is second
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