the mean of three number a,b and c is 8,and the mean of five numbers a,b,c,d and e is 15 ,find the mean of d and e,
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the answer is 2 must be thank you
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7 is the mean of D and E
Step-by-step explanation:
MEAN OF A, B, C =8
MEAN OF A,B,C,D,E = 15
THEN MEAN OF D,E 15-8=7.
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