There are two trains. One from New York to Washington and second from Washington to New York.
The total journey to a destination takes 5 hours. A train from New York to Washington leaves on hour at every hour The train from Washington to New York leaves an hour and on half an hour. How many trains will be passing if you are traveling from New York to Washington? pls give ans with explainations
2006-07-31 15:16:33 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
19 trains
The rate trains leave NY is not relevant.
When the train pulls out of NY, there are 10 trains heading toward you, including the one that pulls in as you are leaving.
The trip takes 5 hours, so 9 more trains will leave NY over the 5 hours (we don't count the train pulling out of DC twice) and pass our train.
2006-07-31 15:25:27 · answer #1 · answered by © 2007. Sammy Z. 6 · 1⤊ 0⤋
One side 5 and other side 3+4=7. So total 12 trains will pass.
2006-07-31 17:00:33 · answer #2 · answered by sharanan 2 · 0⤊ 0⤋
Are you having us do your homework for you?
Try thinking it out. It's not too hard.
2006-07-31 15:22:15 · answer #3 · answered by z_o_r_r_o 6 · 0⤊ 0⤋