The average of 100,200,300 and x is 250 and the average of 300,150,100,x and y is 200. What is the value of y?
Select the correct option:
A) 100
B) 150
C) 50
D) 200
E) 250
We have : (100+200+300+x) /4 = 250   600+x = 1000   x = 400   (300+150+100+x+y)/5 = 200   550+400+y = 1000   y = 50   Answer is 50
<result>C</result>
The average of 100,200,300 and x is 250 and the average of 300,150,100,x and y is 200. What is the value of y?