7. The speed ratio of 2 trains is 3:4 and the trains are
moving in opposite direction. The time taken by the
trains to cross a post is 5 and 10 sec respectively. What is
the time required for the trains to cross each other?
Answers
Answered by
0
Answer:
no no
I don't know sorry I can't
Answered by
0
Answer:
very important thinks.
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