Question
Two boats X and Y start towards each other from two
places, 198 km apart. Speed of the boat X and Y in still water are 15 km/hr and 18 km/hr respectively. If X proceeds down and Y up the stream, they will meet after.Solution
Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (15 + x) t + (18 – x) t = 198 ⇒ 15t + 18t = 198 ⇒ 33t = 198 ⇒ t = 198/33 = 6 hours
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 t...
Statements: R < S = K < T ≤ F; T > E; I = T ≤ W
Conclusions:
I. W > K
II. F ≥ R
III. R < F
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 then...
Statements: B > C = D > H ≥ A; B ≤ D = F ≤ E < G
Conclusions:
I. H < E
II. B ≤ E
...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 t...
In which of the following expressions does the expression ‘L > B’ and ‘R < N’ is true?
Statements:Â Â Â Â Â Â Â X @ Y % M % N; M $ P $ Z
Conclusions :     I. Y % Z               II. X @ N          �...
Statements:  W > O > E ≤ N > P; L ≥ U; P > Q = R > U
Conclusions:
I. Â N > U
II. Â P > U
III. Â P < L
IV....
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 t...
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 t...
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