A bus first travels west for 38 kilometers. Then it turns south and
travels for 25 kilometers. Next it goes
east for 38 kilometers. Finally, it travels
north for an unknown number of
kilometers. At the end of the journey,
the bus is back at the original location.
How far did it travel northward?

A train is going on a journey. First it travels east for 50 kilometers. Then it turns north and travels for 22 kilometers. Next it goes west for 50 kilometers. Finally, it travels south for a certain number of kilometers. At the end of its journey it is back at its original location. How many kilometers did it travel in the southward direction?

answer: for each 3 girls there is 2 boys . 3: 2

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pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

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