Question
The ratio of the speed of boat ‘A’ in still water,
the speed of boat ‘B’ in still water and the speed of the current is 8:5:2, respectively. If the time taken by boat ‘A’ to travel (7D – 24) km downstream is equal to the time taken by boat ‘B’ to travel (D + 50) km upstream, then find the value of ‘D’.Solution
Let, the speeds of boat ‘A’ and boat ‘B’, in still water and the speed of the current be 8x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (7D – 24)/(8x + 2x) = (D + 50)/(5x – 2x) Or, 21D – 72 = 10D + 500 Or, 11D = 572 Or, D = 52
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and ...
Which of the following will be definitely true if the given expression P > S ≥ U > V = T ≤ W < R = Q is definitely true?
Statements: A ≤ E, P < Q > X, E = P, Y ≥ Z = A
Conclusions:
I. Q > E
II. E < X
Statements:
M < K ≤ G ≤ Z; P = J > Z; I ≥ R > P;
Conclusions:
I. K ≤ P
II. M < R
Statements: M = N ≤ P = C > G, D ≥ M > T = F
Conclusion:
I. D ≥ N
II. N > F
III. F < P
Statements: D ≤ R < E = F, W = B > A ≥ F
Conclusions:
I. E = W
II. D < B
Statements: Â MÂ @ C, C $ X,X # J, JÂ * Â NÂ Conclusions :Â
I.        N % X
II.       J % MÂ
...In which of these expression ‘N > G’ is definitely True?
Statements: D = P > Q = X ≤ Y = M; J = X; K > Q
Conclusion: I. M > K II. M ≤ K
Statements: V ≥ W > X = Y, C > D = E ≥ V
Conclusions :I. E ≥ W
II. D ≥ Y
III. C > V
...
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