Question
A high-speed Bullettrain takes 20 seconds to cross a
platform. The length of the Bullettrain is 40% less than the length of the platform. If the Bullettrain's speed is increased by 25%, what will be the time taken by the train to cross a pillar?Solution
ATQ, Let the length of the platform be '10a' metres So, length of the train = 10a × 0.6 = '6a' So, speed of the train = {(6a + 10a)/20} = '0.8a' m/s So, new speed of the train = 0.8a × 1.25 = 'a' m/s So, required time = 6a ÷ a = 6 seconds
Statements: X & C, C % W, W $ S, S @ L
Conclusions: I. L & C II. S # C III. W @ X
...In the question assuming the given statements to be true, find which of the conclusion(s) among given three conclusions is/are definitely follows and ...
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 following question, a relationship between different elements is shown in the statements, followed by two conclusions I and II. Assuming the stat...
Given the following expression, find which of the equations from the given options is true ?
N ≥ P ≥ M ≥ U = D ≥ F
Statements:K < L,L ≥ M,M > N
Conclusions: I. K < M II. N > K
Statements: F @ R, R $ J, V % J, V # Z
Conclusions: I. F * V       II. R * V                              �...
Statements: H ≥ I < J ≥ K > L ≥ M
Conclusions:
I. L < J
II. M ≤ J
III. K ≥ J
IV. I = K
Statements: P < R = S = T < U < V; Q = V < W < X < O
Conclusions:
I. Q > R
II. P < OStatements: T = U > W < X ≤ Y ≥ V > Z > R = S
Conclusions:
I. T > V
II. T ≤ V
III. S > Y
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