Question

The mean of three numbers is 4

Two of the numbers are 1, 9
What is the missing number?

Answer 1

Answer is 2

(9+1+x)/3=4
(10+x)/3=4
10+x= 3*4
x= 12 -10
x= 2

Answer 2

Answer:2

Step-by-step explanation: 9+1+2=12

12\3=4

ANSWER : 2