Two trains running in opposite directions cross a man standing on the platform in 30 seconds and 15 seconds
respectively and they cross each other in 24 seconds. What is the ratio of their speed?
1.1:3
2.2:1
3.3:2
4. 1:2
5. None of these
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2) 2:1 is the answer..I hope it will help you!!
nari85:
please explain
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