Question

average of 4 number is 10.in this group 5 and 9 are included.find the new average​

Answer 1

Step-by-step explanation:

4+10+5+9--28-3-*9eisk

Answer 2

Answer:

9

Step-by-step explanation:

let the numbers be X1, X2, X3 ,x4

(X1 + x2 + x3 +x4) ÷ 4 = 10

therefore

X1 + x2 + x3 +x4 = 40

new average

(X1 + x2 + x3 +x4 + 5 + 9) ÷ 6

= (40 + 5 + 9) ÷ 6

= 54 ÷ 6

= 9

Hope this answer helps you