SOLUTION:

Question 41090:
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
FIRST PART:
Let the angle be .
Then, its supplement =
Its complement = ; twice the complement =
By problem,

or
or x = 10

Ans: The reqd. angle is 10 degrees.

SECOND PART:
Let the numbers be (n-2), (n-1), n, (n+1) and (n+2).
Their sum = (n-2) + (n-1) + n + (n+1) + (n+2) = 5n = 0 (given)
So n = 0.

Ans: The integers are -2, -1, 0, 1 and 2.