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2014-10-18T19:12:11+08:00

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This is the way to find an avarage
ex:
math:87
science: 85
English:88

you can solve it by adding each other
the answer is 260
divided it to 3 because,there are 3 subject available the math,science,and english

so,260 divided by 3 equals 86.666 is the final average




(^_^)hope its help...................
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