Question

two trains running in the same direction at 56 km per hour and 20 km per hour completely pass one another in one minute. If the length of the first train is 125 m, then find the length of the second train.

Answer 1

$\textbf {Hey there, here is the solution.}$

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STEP 1: Find distance traveled by first train in one min:

1 hour = 56 km

Rewrite 1 hour as 60 mins:

60 mins = 56 km

Divide both sides by 60:

1 min = 56/60

1 min = 14/15 km

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STEP 2: Find the distance traveled by the second train in one min:

1 hour = 20 km

Rewrite 1 hour as 60 mins:

60 mins = 20 km

Divide both sides by 60:

1 min = 20/60

1 min = 1/3 km

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STEP 3: Find the difference in distance traveled:

First train = 14/15

Second train = 1/3

Difference = 14/15 - 1/3

Distance = 3/6 km

Distance = 0.6 km (in decimal)

Distance = 600 m (in metres)

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STEP 4: Find the distance of the second train:

Total distance = 600 m

Length of first train = 125 m (given)

Length of second train = 600 - 125

Length of second train = 475m

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Answer: The length of the second train is 475 m

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$\textbf {Cheers}$

Answer 2

the answer is 475Answer: The length of the second train is 475 m