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Mathematics, 20.02.2021 23:10 nikeahbrown
The mean of four numbers a ,b, c, and d is 8 and mean of seven numbers x , y ,z ,a, b, c and d is 12 . Find the mean of x, y and z.
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The mean of four numbers a ,b, c, and d is 8 and mean of seven numbers x , y ,z ,a, b, c and d is 12...
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