Question
A boat can travel 72 km upstream
and 108 km downstream in 5 hours. Find the speed of the boat in still water if the ratio of the speed of the boat in upstream to the speed of the boat in downstream is 2:3 respectively.Solution
Let the speed of the boat in upstream be ‘2x’ km/h and in downstream be ‘3x’ km/h, respectively. According to the question: 
Speed of the boat in still water = (2x+3x)/2 = (5×14.4)/2 = 36 km/h.
Which of the following set of elements should be placed in the place of question marks respectively (in same order from left to right) in order to compl...
In the question, assuming the given statements to be true, find which of the conclusion (s) among given two conclusions is /are definitely true and then...
In the question, assume the given statements to be true. Find which of the following conclusion(s) among the three conclusions is/ are definitely true ...
Statements: A > B > C; D < E < C; D ≥ F = G
Conclusion:
I. G < E
II. F < A
Statements:Â
A $ B * X © Y @ ZÂ
Conclusions:Â
I. X @ ZÂ
 II. Z * AÂ
III. Z % X
In which of the following expressions will the expression ‘S > Y’ and ‘R > Y be definitely true?
Statements: T > S > R, L ≥ D < R, L ≤ O ≤ Z
Conclusions:
I. T > L
II. S > D
III. Z ≥ R
...In the following question, a relationship between different elements is shown in the statements, followed by two conclusions I and II. Assuming the stat...
Statements: A > Y = D > Q, M ≤ B > P > Y
Conclusion:
I. Y ≤ M
II. B > QÂ Â
Statement: L ≥ X ≤ Z > Y ≤ A, Y = B ≥ CÂ
Conclusion: I. C >A                         II. A ≥ C
...
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