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mahi

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· 1 Months ago

ssc cgl 18 (Question:447903.0)

from where and how to prepare for general studies (history,geography,science,civics)

Question:

The speeds of two trains are in the ratio 3 : 4. They are going in opposite directions along parallel tracks. If each takes 3 seconds to cross a telegraph post, find the time taken by the trains to cross each other completely?

Options:
A) 1 seconds 
B) 3 seconds  
C) 5 seconds
D) 7 seconds
Solution:

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