Question
The speed of the stream is 20 km/h. Boat ‘A’ covers
120 km distance against the stream in 6 hours and boat ‘B’ covers 120 km distance against the stream in 5 hours. The speed of boat ‘B’ in still water is how much percent of the speed of boat ‘A’ in still water?Solution
Speed of boat ‘A’ upstream = 120/6 = 20 km/h Speed of boat ‘B’ upstream = 120/5 = 24 km/h Speed of the boat ‘A’ in still water = 20 + 20 = 40 km/h Speed of the boat ‘B’ in still water = 24 + 20 = 44 km/h Required percentage = (44/40) × 100 = 110%
In the questions given below there are three statements followed by three conclusions I, II, and III. You have to take the three given statements to be...
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Statement:
Some P are Q
Only a few R are S.
Only a few S are T.
Only S are P.
Conclusion...
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I. 20% Laptops can be Computers.
II. 40% Drive are not Laptops.
Statements:
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All trolleys are luggage.
Some luggage is a warehouse. ...
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Some tiles are irons.
Conclusions: I. Some tiles are stairs.
I...
Statements:
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No leg is hand.
All hand is arm.
Only arm is shoulder.
Conclusions:
I. Some ha...
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A few gifts are surprises.
Every surprise is cake.
None of the cakes are balloons.
Conclusions:
I. A few ...
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