the mean of 4 numbers Is 5 and the mean of 3 different numbers is 12. what is the Mean of the 7 numbers
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Step-by-step explanation:
the mean of 4 numbers Is 5
x/4=5
x=20
the mean of 3 numbers is 12
y/3=12
y=36
the Mean of the 7 numbers is = x+y/7
=20+36/7
=56/7
=8
the Mean of the 7 numbers is 8
hope it helps you
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