Question
A boat covers a total downstream distance of 180 km,
split into two equal parts. The boat’s speeds in these two parts are 2a km/h and 4a km/h respectively. The speed of the stream is a km/h. If the total time taken by the boat is 15 hours, find the value of ‘a’.Solution
ATQ,
Speed of the boat downstream = (2a + a) = 3a km/h and (4a + a) = 5a km/h respectively.
According to the question,
90/3a + 90/5a = 15
30/a + 18/a = 15
48/a = 15
a = 3.2
Statements: R © K, K * N, N $ J, J % H
Conclusions:     I.R $ N                  II.J @ K              �...
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the...
Statements: Q > M > Y < N = H ≥ S < V < R ≤ K
Conclusion
I: K > Y
II: N > S
Statement: P > Q; Q ≥ W = X < Z
Conclusions: I. W < P
II. X ≤ Q
...Statements:          X@W,   W#U,     U$Q,     Q@R
Conclusions :Â Â Â Â Â Â Â Â Â
I. Q % WÂ Â Â Â
II. U ...
Given statement shows the relation between different elements followed by two conclusions. Â
Statement: C1 < L1 > I2 = E1 ≥ N2 > T1 Â
...
Statements: C ≤ A ≥ B > D; F > E ≥ G ≥ A
Conclusions:
I. E ≥ B
II. F > DIn which of the following expressions will the expression ‘ Q > B ’ be definitely true?
Statement: C > B > T < J > D > M < Z
Conclusion: I. C > M II. C > Z
Statement: Y < Z > I < Q > S = M ≤ N
Conclusions:
I. S= N
II. Q > M
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