Answer:
1) 2 buckets of the 100 bucket.
2) 1 bucket of the 100 bucket and 2 buckets of the 50 bucket.
3) 1 bucket of the 100 bucket and 10 buckets of the 10 bucket.
4) 4 buckets of the 50 bucket.
5) 1 bucket of the 50 bucket and 15 buckets of the 10 bucket.
6) 2 buckets of the 50 bucket and 10 buckets of the 10 bucket.
7) 3 buckets of the 50 bucket and 5 buckets of the 10 bucket.
8) 20 buckets of the 10 bucket.