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some14myself
- Newbie | Next Rank: 10 Posts
- Posts: 3
- Joined: Tue Aug 19, 2008 2:54 am
Q.
It takes the high-speed train x hours to travel the z miles from Town A to Town B at a constant rate, while it takes the regular train y hours to travel the same distance at a constant rate. If the high-speed train leaves Town A for Town B at the same time that the regular train leaves Town B for Town A, how many more miles will the high-speed train have traveled than the regular train when the two trains pass each other?
A) z(y – x) / x + y
B) z(x – y) / x + y
C) z(x + y) / y – x
D) xy(x – y) / x + y
E) xy(y – x) / x + y
MGMAT has the explanation but it is very long and time-consuming .. any other suggestion to solve this problem faster guys?
It takes the high-speed train x hours to travel the z miles from Town A to Town B at a constant rate, while it takes the regular train y hours to travel the same distance at a constant rate. If the high-speed train leaves Town A for Town B at the same time that the regular train leaves Town B for Town A, how many more miles will the high-speed train have traveled than the regular train when the two trains pass each other?
A) z(y – x) / x + y
B) z(x – y) / x + y
C) z(x + y) / y – x
D) xy(x – y) / x + y
E) xy(y – x) / x + y
MGMAT has the explanation but it is very long and time-consuming .. any other suggestion to solve this problem faster guys?
