- AEither statement alone is sufficient
- BBoth statements together are needed (neither alone is sufficient)
- CStatement II alone is sufficient but Statement I alone is not
- DStatement I alone is sufficient but Statement II alone is not
Step-by-Step Solution
Each statement alone allows many values; together the only multiple of 9 between 50 and 60 is 54.
Answer: B) Both statements together are needed (neither alone is sufficient)