Question

3. ਜੇਕਰ 5, 4, X,X+3,9 ਅਤੇ 8 ਦਾ ਮੱਧਮਾਨ 6
ਹੈ , ਤਾਂ x ਦਾ ਮੁੱਲ ਪਤਾ ਕਰੋ। If the arithmetic
mean of 5, 4, X, X + 3, 9 and 8 is 6, find
out value of x. ਦ 5, 4, X, X+3, 9 ਜੀਵ
8 का मध्यमान 6 है तो x का मूल्य ज्ञात करें,
n write in answer​

Answer 1

$Given \: the \: arithmetic \: mean \: of \: 5,4\\x , x+3, 9 \: and \: 8 \: is \: 6$

$i) Sum \: of \: the \: observations \\= 5 + 4+ x+(x+3)+9+8\\= 5 + 4+ x+x+3+9+8\\= 2x + 29$

$ii) Number \: of \: observations = 6$

$\blue{ Arithmetic \: mean = 6 \: (given) }$

$\implies \pink{ \frac{Sum \: of \: the \: observations }{ Number \: of \: observations } = 6 }$

$\implies \frac{2x + 29}{6} = 6$

$\implies 2x + 29 = 36$

$\implies 2x = 36 - 29$

$\implies 2x = 7$

$\implies x = \frac{7}{2}$

$\implies x = 3.5$

Therefore.,

$\red{ Value \: of \: x } \green { = 3.5 }$

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Answer 2

Step-by-step explanation:

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