Question

Arithmetic mean of these items: 10, 50, X, 20, 30 is 25. Find out the missing item.​

Answer 1

Answer:

15

Explanation:

Since we know,

MEAN = (SUM OF OBSERVATIONS)/(NO. OF OBSERVATIONS)

= (10+50+X+20+30)/5 = 25

110 + X = 125

X = 15

I HOPE YOU ARE CLEAR

Answer 2

Answer:

15

Explanation:

mean= 10+50+x+20+30/5

25= 110+x/5

125-110=x

x=15