Question
Find the total time taken by boat C to cover the entire
journey?Solution
Speed of boat C in still water = 15 km/hr Speed of stream = 3 km/hr Upstream speed = 12 km/hr Downstream speed = 18 km/hr Let, total time taken by boat C for the entire journey = 19t hours So, according to the question Time taken to travel upstream = 10t hours Time taken to travel downstream = 9t hours Let, a kms and b kms be the distance travelled by boat C upstream and downstream respectively. = 10t hours …(1) hours …(2) From equation 1 and 2, we get, a:b = 20:27 Total distance travelled by boat C = 141 kms So, upstream distance = 60 kms, and downstream distance = 81 kms Upstream time = = 5 hours Downstream time = = 4.5 hours Total time = 5 + 4.5 = 9.5 hours Hence, option 4 is the correct answer.
Statement: M > K ≥ V ≥ G; Q < T < M
Conclusion:
I. T < G
II. Q < V
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 the...
Statements:  B > K < Y, E > C ≥ O = Y
Conclusions:
I. C > B
II. E ≤ Y
III. E > K
IV. O ≥ K
...Statements: B ≤ C < E; D ≤ F ≤ G; E = D; A > B
Conclusions:
(i) E ≥ G
(ii) A < E
(iii) B ≤ G
(iv) C < F
In this question, two statements are followed by two conclusions, numbered I and II. Find out which conclusion(s) is/are definitely true, based on the ...
Statements: M = N; A < C < E; N > A
Conclusions:
I. E > N
II. M > C
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: M > N = W; J < P = N; Y > P
Conclusions:
I. Y > W
II. M < Y
III. J > M
In which of the following expressions will the expression ‘M ≥ N ' and ‘Q < O’ be definitely true?
Statements: I % C, C & D, D $ K, K # Z
Conclusions: I. I & DÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. D # Z
...
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