1. A train moves past a phone post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?
(please solve this for maths type which i could understand

1
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is it okay?

Answers

2014-03-07T13:05:32+05:30
Let the length of the train be Xm meter and speed be Y m/sec

so, X/Y = 8

=>X=8Y

Now according to the question :

(X+264)/20=Y

=>8Y+264=20Y

=>Y=22

Thus, the speed of the train is 22m/sec=(22*18/5) km/hr=79.2 km.hr
0
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