Answer:
We generally know consecutive even integer numbers are 2 , 4 , 6, 8, 10 ............
So we can see there is difference of 2 in consecutive even integer.
So if we let first even integer as 2n.
So we will let three consecutive even integer as 2n , 2n+2 , 2n+4
Their sum is 54.
So we can write





So n = 8
