Math, asked by tabrejahmad3167, 8 months ago

If the ratio of time taken by train to cross the pole and Bridge of length 1.6 kilometres is 1:9 find the length of the train

Answers

Answered by ParvezShere
0

The length of train = 0.2 Km

Let the length of train be x Km

Length of bridge = 1.6 Km

Time taken to cross the pole = length of train / velocity of train

Time taken to cross the bridge = length of (train+bridge) / velocity of train

Time taken cross pole / Time taken to cross bridge = x / (x+1.6)

=> 1/9 = x/(x+1.6)

=> x+1.6 = 9x

=> 8x = 1.6

=> x = 0.2 Km

The length of train = 0.2 Km

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