Question
Two trains of same length are running in parallel tracks
in the same direction with speed 50 km/hr and 80 km/hr respectively. The latter completely crosses the former in 30 seconds. Find the length of each train (in m).Solution
When two trains cross each other, they cover distance equal to the sum of their lengths with relative speed.  Let's take length of each train = x So, total length of both trains = 2x Relative speed = (80 – 50) × (5/18) = 25/3 m/sec. ∴  Total length = Time × Relative speed  ⇒  2x = (30 × 25)/3 ⇒  x = 125 m
Statements: Z % Y; X # W; U % V; W & V; Y @ X
Conclusions:Â Â Â Â Â
I. U @ X Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
Which among the following symbols should replace the question mark [?] (in the same order from left to right) in the given expression in order to make ...
Which among the following symbols should replace the question mark [?] (in the same order from left to right) in the given expression in order to make b...
Statement: E ≤ F; E ≤ H; F = P; H < S
Conclusion:
I. S ≤ F
II. P ≥ S
In the following question, a relationship between different elements is shown in the statements followed by two conclusions I and II. Assuming the state...
Which of the following symbols should replace the sign ($) and (*) respectively in the given expression in order to make the expression A ≥ J and P ...
Relationship between different elements is shown in the statements. Find if the conclusions also follow or not.
Statements: J ≥ Q = W ≥ D <...
Statements: N $ J, J % O, OÂ * Â P, P # X
Conclusions :
I. X % J
II. N $ P
III. J % X
IV. X % O
Statements: P = Q = R > S > T > Z; U > R < V < W > X
Conclusions:
I. W > Z
II. R < W
III. R < X
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...
Relevant for Exams:
