Question

15°+12°+13/(15×12×13)°=(15)x ,x=??

Answer 1

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X = 20 
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      explanation


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Mean = ( sum of the observations )/(number of observation ) 



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According to the problem given,

Observations are 10 , 12 , 18 , 13 , x , 17

Mean = 15 ( given ) ------( 1 )

Mean = ( 10 + 12 + 18 + 13 + x + 17 ) / 6

= ( 70 + x )/6-------( 2 ) 

( 2 ) = ( 1 )

(70 + x ) / 6 = 15

70 + x = 15 × 6

70 + x = 90

x = 90 - 70

x = 20

Therefore,

Value of x = 20

Answer 2

we will find the value of x is equal to the 20