Question

find the missing number 7 8 4
the average of the 4 number is 8

complete the table
round number of netball goals
1 70
2 62
3 ?

Answer 1

let the number be x

A/Q average of 7,8,4,x = 8

7+8+4+x / 4 = 8

19+ x / 4 = 8

19 + x = 32

x = 32 - 19

x = 13 answer .

x = 14