the mean of x x+3 x+6 x +9 and x+12 is 10 then x is
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Answer: x=4
Step-by-step explanation:
On addition the of all we will get (x+x+3+x+6+x+9+x+12)/5
On solving (5x+30)/5
5(x+6)/5=10(given)
x+6=10
x= 4
Done
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