Question
A man can row at a speed of 20 km/hr in still water to a
certain upstream point and back to the starting point in a river which flows at 5 km/hr. Find his average speed for total journey.Solution
Speed of the man in still water = 20 km/hr Speed of the stream = 5 km/hr Speed downstream = (20 + 5) = 25 km/hr Speed upstream = (20 - 5) = 15 km/hr Average speed = (Speed downstream x Speed upstream)/Speed in still water = (25 x 15)/20 = 18.75 km/hr
Statements: M ≥ X ≥ B > V ≤ G = Y > K > U < N
Conclusion
I: G > U
II: V ≤ M
Statements:
Some Lessons are Chapters.
No Chapter is Topic.
Only a few Topics are Paragraphs.
Only Paragraph is Content.
...Given below are two statements, followed by two conclusions. Assume the given statements to be true even if they vary with commonly known facts. Based o...
Read the statements and identify which of the conclusions logically follow/s from the given statement.
Statement:
Parents are ready to p...
Statements:
Q ≥ R = P; R > S ≥ Z; S ≥ B < C
Conclusions:
I. C > Z
II. B < Q
Statements:
Only English are History.
Only a few English are Science.
Some Science are not Hindi.
Conclusions:
<...Statement: S ≤ M < X = H ≥ B ≥ K < V
Conclusion: X > K, K = X
In each question below is given a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, ...
The data breach at 19 Indian banks that have led to more than 32 lakh debit cards being blocked or recalled is a wake-up call for the banking industry. ...
Statements: H = U < S ≤ V > F = E > J ≥ I
Conclusion
I: H < F
II: V > I
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