Question

A train crosses a pilar in 20 seconds and a platform of length 300 metres in 25 seconds,then what will the 120% of the length of the train.

A 1500 Correct Answer Incorrect Answer
B 1440 Correct Answer Incorrect Answer
C 1445 Correct Answer Incorrect Answer
D 1200 Correct Answer Incorrect Answer
E none of these Correct Answer Incorrect Answer

Solution

Let the length of the train is 'x'metres. ATQ, (x/20) = {(x + 300)/25} Multiplying throughout by '5', we get Or, (x/4) = {(x + 300)/5} Or, 5x = 4x + 1200 So, x = 1200 So, required value = 1200 X 1.2 = 1440

Practice Next
×
×