Question

the mean of 3, 8, 15, x and 14 is 12. find x​

Answer 1

Answer:

20

Step-by-step explanation:

3+8+15+14+x/5=12

=> 40+x=60

=>x=20

Answer 2

Answer:

The value of x = 20

Step-by-step explanation:

Given, Mean= 12

          N= 5

          ∑x = 3+8+15+x+14 =40+x    

Now,   Mean=∑x/n

           12 =40+x / 5

            12×5= 40+x

            60 = 40+x

             60-40=x

             20 = x

        ∴x= 20