the average of seven numbers is 6. what is the eight number to be added to increase the average to 10
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let the numbers be x,y,z,a,b,c
x+y+z+a+b+c/6 = 8
x+y+z+a+b+c = 48
let the 7th number be m
x+y+z+a+b+c+m/7 = 10
48+m/7 = 10
48+m = 70
m = 70 - 48
m = 22
x+y+z+a+b+c/6 = 8
x+y+z+a+b+c = 48
let the 7th number be m
x+y+z+a+b+c+m/7 = 10
48+m/7 = 10
48+m = 70
m = 70 - 48
m = 22
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80 - 42=38 is correct answer
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Answered by
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here is your answer 32should be the eight no.
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