Answer:
"10"
Explanation:
This is rather thinking "pictorially". Picture it.
You can match it with a round clock that has numbers 1 - 12 written on it.
So,
32 and 16 would be opposite of each other [top and bottom]. And, 1 - 15 would be on right side and 17 - 31 would be on left side.
Now,
Going counter-clockwise from 32, 26 would be the 6th number. Going counter-clockwise from 16, 10 would be the 6th number.
Hence, they would be opposite of each other.
10 would be opposite of 26