The average of x, x2,x3 =14and Twice the sum of x2 and x3 is=30.what is the value of x1?
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3
x1 is equal to 27 first calculate the average then substitute the 2nd equation value in 1st equation yhen find the value
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twice the sum of x2 and x3 is30
2(x2+x3)=30
x2+x3=15. ...........(1)
average of x1 x2 x3 is 14
means
(x1+x2+x3)/3=14
x1+15=42. from (1)
x1 = 42-15
x1 = 27
2(x2+x3)=30
x2+x3=15. ...........(1)
average of x1 x2 x3 is 14
means
(x1+x2+x3)/3=14
x1+15=42. from (1)
x1 = 42-15
x1 = 27
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