Question
Two trains of same length are running in parallel tracks
in the same direction with speed 56 km/hr and 110 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 = (110 – 56) × (5/18) = 15 m/sec. ∴  Total length = Time × Relative speed  ⇒  2x = (30 × 15) ⇒  x = 225 m
Statements: M > N < O, J < K < L, L = P > Q ≥ U = M
Conclusions:
I. L > N
II. Q < J
III. Q > OWhich of the following symbols should replace the question mark in the given expression, in order to make the expressions K < I as well as N &...
Answer the questions based on the information given below.
A $ B means A is smaller than B
A * B means A is not smaller than B
A ...
In the question, assuming the given statements to be true, find which of the conclusion (s) among the given three conclusions is/are definitely true a...
Statements: R < D = G ≤ S = X ≤ B, B > M ≥ V
Conclusions:
I. B ≥ D
II. S > V
III. M < G
In the question, relationship between some elements is shown in the statements (s). These statements are followed by two conclusions. Read the statemen...
Statements: G@B; W#Z; B%W
Conclusions:
I) G@Z
II) Z@B
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: T > S > R, L ≥ D < R, L ≤ O ≤ Z
Conclusions:
I. T > L
II. S > D
III. Z ≥ R
...Statements: 4 > 7 > 9; 1 ≤ 4 < 5; 7 > 6 = 2 > 3
Conclusions:
I. 3 < 4
II. 9 < 5
III. 1 < 6
