Select the correct answerTwo trains with lengths 126 m and 119 m respectively are moving towards each other.Their speeds are 12 m/s and 23 m/s, respectively. What will be the time needed by the trains to cross each other?Options7 seconds9 sec12 sec14 sec
Question
Select the correct answerTwo trains with lengths 126 m and 119 m respectively are moving towards each other.Their speeds are 12 m/s and 23 m/s, respectively. What will be the time needed by the trains to cross each other?Options7 seconds9 sec12 sec14 sec
Solution
To solve this problem, we need to add the lengths of the two trains together and then divide by the sum of their speeds.
Step 1: Add the lengths of the two trains together. 126 m + 119 m = 245 m
Step 2: Add the speeds of the two trains together. 12 m/s + 23 m/s = 35 m/s
Step 3: Divide the total length by the total speed to find the time it takes for the trains to cross each other. 245 m / 35 m/s = 7 seconds
So, the correct answer is 7 seconds.
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