Question
Two pipes, D and E, can fill a cistern in 26 and 78
hours, respectively, while working alone. If the two pipes are opened together, the time taken to fill the cistern is:Solution
Two pipes, D and E, can fill a cistern in 26 and 78 hours, respectively, while working alone. LCM of 26 and 78 is 78 which can be assumed as the total work. Efficiency of D = 78/26 = 3 units/hour Efficiency of E = 78/78 = 1 unit/hour If the two pipes are opened together, the time taken to fill the cistern = 78/(3+1) = 78/4 =Â 19.5 =Â 19(1/2) hours
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Some medals are sports.
All the sports are games.
Conclusions:
I. Some medals are games.
II. No sport is medal
Statement:
Only Metal is Bronze
Some Metal are not Gold
All Gold are Diamond
 Conclusion:         Â
...
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All M are K.
All K are J.
All L are J.
No L is a P.
Conclusions: Â Â Â Â Â Â Â Â
I. No K is L...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varian...
Statement:
Only a few mothers are father.
All fathers are daughter.
No daughter is son.
Conclusion:
I. Some mother can never be son.
II. No father is son.
Statements :
Only a few Boat are Ship
Some Ship are River
All River are Fish
Conclusion :
I. Some Boat are Fish
Statements:
Only a few Auctions is Sales.
Only a few Costs is Auctions.
No Cost is Inventory.
Conclusions:
Statements: Â
All gold are silvers.
All silvers are diamonds.
Some diamonds are ruby
No ruby is silver.
Conclusion...
Statements:All hotels are buses.
Some buses are cars.
All cars are trams.
Some trams are clouds.
Conclusions:I. Some trams a...
In the question below are given four statements followed by three conclusions numbered I, II and III. You have to take the given statements to be true ...
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