Question
A man can row 25/2 km an hour in still water and he
finds that it takes him thrice as long as long to row down the river. The rate of stream is:Solution
Let the rate of stream be x km/hr Then, Speed of downstream = [(25/2) + x] km/hr Speed of upstream = [(25/2) - x] km/hr [(25/2) + x] = 3 [(25/2) - x] (25/2) + x = (75/2) - x 4x = 25 x = 6.25 km/hr
Statements: Chapter % Topics Topics # Number Paragraph & Heading Number @ Paragraph
Conclusion:
I. Paragraph $ Topics
II. ...
Conclusions:
I. All Machines being Tools is a possibility.
II. No screw is a Forks.
III. A few Scissors may be Machines.
Statements:
In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they se...
Statements:
Only a few Chairs is Tables.
Only a few Woods is Chairs.
No Wood is Desk.
Conclusions:
I. Every Chairs ca...
Statements:
No Fire is Water.
Some Oil is Sugar.
Only a few Water is Sugar.
Conclusions:
Some Oil can never be Fi...
Statements:
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...
Statements: All gates are lights.
No street is a gate.
All lights are houses.
Conclusions I. All gates are houses.
II. So...
Statement:
I) Some patient are maler
II) All male are doctor
III) No doctor is bad
IV) All bad are quacks
Concl...
Statements:
Only cloth are cotton
Some cloth are Nylon
Only a few Nylon are woolen
Conclusions:
I. At least some ...
Statements-:
Some Reds are blues.
No Blues are white.
Some Blacks are white.
Conclusions-:
I. All black are defin...
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