Question

12,8,x,5,10 If the mean of the given data is 10.Find the value of x

Answer 1

Answer:

x = 15

Step-by-step explanation:

Observations = 12, 8, x, 5 and 10

No. of observations = 5

Mean = 10

Value of x = ??

$\bigstar \: \sf{Mean = \dfrac{Sum \: of \: Observations}{No. \: of \: Observations}}$

$\sf{\longrightarrow} \: 10 = \dfrac{12 + 8 + x + 5 + 10}{5}$

$\sf{\longrightarrow} \:10 = \dfrac{35 + x}{5}$

$\sf{\longrightarrow} \:10 \times 5 = 35 + x$

$\sf{\longrightarrow} \:50 = 35 + x$

$\sf{\longrightarrow} \:x = 50 - 35$

$\sf{\longrightarrow} \:x = 15$

Value of x is 15.

Therefore, x = 15.

Answer 2

Answer:

$\underline{\purple{\ddot{\Mathsdude}}}$

♧♧To find :-

• The value of x .

♧♧Explanation :-

• Here given that,

1. observations are= 12, 8 , x , 5, 10.

• Here the total no of observations are 5 .
• Mean = 10

☆We know the formula that ,

• ☆Mean = sum of observations/ no of observations.

☆☆Now applying the values in formula.

• we get ,

• 10 = 12+8+x+5+10/5
• 10= 35+x/5
• 10×5=35+x
• 50 = 35 +x
• 50-35= x
• 15 = x

♧Therefore , the value of x is 15.

♧♧Hope it helps u mate.

♧♧Thank you