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Let the speed of the stream be 'x' km/hr So, speed of boat in still water = x X 4 = '4x' km/hr Distance between 'Y' and 'X' = (150/2) = 75 km/hr ATQ, (150/5x) + (75/3x) = 11 Or, (30/x) + (25/x) = 11 Or, (55/x) = 11 So, 'x' = 5 So, upstream speed of boat = '3x' = 3 X 5 = 15 km/hr Therefore, required time = (180/15) = 12 hours
Two statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance ...
Statement: All mobiles are laptops.
Only a few mobiles are chargers.
Some laptops are led.
Conclusion:
1. Some mobiles are...
Statements:
Only Short is Big.
No Short is Tallest.
Only a few Tallest is Shortest.
Few Heaviest is Short.
Conclusion...
Statements:
A few parrots are hens.
No parrot is bird.
All bird are sparrows.
Conclusions:
I: Some hens are not b...
. Statements:
Some ovens are microwaves.
Only a few microwaves are toasters
No oven is a grinder
Conclusions:
I. All ...
Statements:Â
Some Gold are Silver
All Silver are Bronze
Some Bronze are Copper
Conclusions:
I. Some Bronze ...
Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at varian...
Statement:
Only a few bottles are Knives.
No Knife is a charger.
Only rings are Chargers.
Conclusion:
I. Some kni...
Statements : All bottles are cans.
                                All drawers are cans.
     Â...
Statements:
All Table are Chair
Some Chair are woods
Some woods are Watch
All watch are metals
Conclusions :
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