[" Two trains running in opposite direct...

[" Two trains running in opposite directions cross a man stand- "],[" ing on a platform in "27" sec and "17" sec respectively and they "],[" cross each other in "23" seconds.What is the ratio of their "],[" speeds? "],[[" (a) "3:2" (b) "1:5," (c) "2:3," (4) None of these "]]

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[" Two trains running in opposite directions cross a man stand- "],[" ing on a platform in "27" sec and "17" sec respectively and they "],[" cross each other in "23" seconds.What is the ratio of their "],[" speeds? "],[[" (a) "3:2" (b) "1:5," (c) "2:3," (4) None of these "]]

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