Question
A ferry takes 108 minutes to row to place B from another
place A along the stream. The distance between place A and place B is 32.4 km. If the speed of the ferry in still water is seven times more than that of the stream, then how much distance will the ferry cover in 6.4 hours against the stream?Solution
Let the speed of the stream be 'M' km/h Speed of the ferry in still water = (7M + M) = 8M km/h Downstream speed = (8M + M) = 9M km/h Upstream speed = (8M – M) = 7M km/h Acc. to the question, 32.4 = 9M × (108/60) M = 2 km/h Upstream speed = 7M = 7 × 2 = 14 km/h Distance travelled = 6.4 × 14 = 89.6 km
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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.
Conclusions: I. Some racks are chairs.
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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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Only Book is Pen.
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.
...
- Statements:
Some second is minute
Mostly minute is hour
All hour is time
Conclusions:
I. Some time is second
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