Question

the mean marks of a group of students is 60 if there marks is 85,62,36,48,72,x,75,39,find the value of x.

Answer 1

Answer:

x = 63

Explanation:

Given , Mean = 60

(85+62+ 36+48+72+x+75+39) / 8 = 60

417+ x = 60 * 8

x = 480 - 417

x = 63