Question

The average of 2,7,6 and x is 6 and average of 18,1,6x and y is 10 , y ?

Answer 1

Answer:

average of 2,7,6,x is 6

(2+7+6+x) /4=6

(15+x) /4=6

15+x=24

x=24-15=9

now average of 18,1,6x, y is 10

average of 18,1,54,y is 10

(18+1+54+y) /4=10

(73+y) /4=10

73+y=40

y=40-73

y=-33