Question

Which value can be added to the set below without changing its mean?
{4, 10, 14, 18, 22, 22​

Answer 1

4+10+14+18+22+22=90
90/6=15

(If you add 15)

4+10+14+18+22+22+15=105
105/7=15

Value 15 can be added

Answer 2

15

4+10+14+18+22+22 = 90
90/6 = 15