Question

if mean of 5, 4, 2, 6, x, 7 is 6 find x. *
10
9
12

Answer 1

Answer:

x is 12

Step-by-step explanation:

Add up all the numbers: 5+4+2+6+x+7= 24+x

Mean= sum of all the no.s ÷ no. of elements

= 24+x/6

According to the problem,

24+x/6 = 6

24+x = 6×6

24+x = 36

x = 36-24

x = 12

Thus, x is 12