Question

5 positive integers are arranged in ascending order, as follows:
1, 9, 9, 12,
x

The mean and the median are equal.
Find
x

Answer 1

Answer:

14

Step-by-step explanation:

1,9,9,12,x

According to this:

x > 12

median = 9 = mean

mean = Sum of observations/number of observation

mean = 1+9+9+12+x/5 = 9

31+x/5 = 9

31 + x = 45

x = 14

Therefore, value of x is 14