Answers

2016-01-23T11:16:45+05:30
It's 2, 4, 6, 8
average is 20/4 =5
0
I know the answer...it was in the source i got the question from...i need the steps and method
2016-01-23T11:29:27+05:30
2 4 6 8 is the answer
1 5 1
I know the answer...it was in the source i got the question from...i need the steps and method
So do it by the method of sum of zeros and product of zeros 
Do it by taking let the nos be a+d,a-d, a+3d,a-3d by first sum them and then product