Question

if mean of x+1 x+3 x+4 and x+7 is 35 find value of x is

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Answer 1

Answer:

mean=(sum of all items )/numberof items

mean=(x+1+x+3+x+4+x+7)/4

35=(15+4x)/4

140=15+4x

140-15=4x

125=4x

125/4=x

x=31.25

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