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Mathematics, 24.06.2021 20:30 fr12345

in a class of 32 students ,the mean height of the 14 boys is 1.56m , the mean height of all 32 student is 1.515m , work out the mean height if girls

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in a class of 32 students ,the mean height of the 14 boys is 1.56m , the mean height of all 32 stude...
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