Question

Question No. 1 Note: This question is mandatory for you to attempt. Inaddition, you cannot re-visit this question. 2011029 An 80-metre-long train takes 4 minutes to cross a 520-metre-long tunnel. If the speed of the train is increased by 10 ms, how much time (in seconds) will the train take to cross the bridge?​

Answer 1

the train will take 20 min to crosa the tunnel

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