Question
A boat can travel upstream at 12 km/h and downstream at
18 km/h. What is the speed of the boat in still water?Solution
Let the speed of the boat in still water be x km/h and speed of current be y km/h. Then, x - y = 12 (upstream), x + y = 18 (downstream). Adding both equations: 2x = 30 → x = 15 km/h. Answer: a) 15 km/h.
- 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 wi...
Statements: Some papers are copies.
No copy is a diary.
Some diary are cardboard.
Conclusions:I. No diary is papers.
II....
Statements:
Some Films are Pictures.
Only a few Pictures are Movies.
All Movies are Locations.
Some Locations are not Theatr...
Statements: Some flower are plant.
All plant are trees.
Some trees are not forest.
Conclusions: I. some forest are flower.
...Statements:
Only year is month
Only a few year is day
All day is week
26% week is minute
Conclusions:
...Statement:Â
Some P are Q
Only a few R are S.
Only a few S are T.
Some S are P.
Conclusion:
I. All R can b...
Statements:
No cup is plate.
Only a few plate is saucer.
Some saucer is spoon.
All spoon is juicer.
Conclu...
Statements:
All carpet are towels.
Some mat are carpet.
Conclusions:
I. Some mat are towels.
II. No mat is carpet.
Each option contains some statements. Determine from which statements the given two conclusions follow.
Conclusion:
I. Some grains are c...
Statements:
All Planets are Satellites.
Only few Satellites are Comets.
Only few Comets are Constellation.
No Constellation ...
