- AStatement I alone is sufficient but Statement II alone is not
- BStatement II alone is sufficient but Statement I alone is not
- CBoth statements together are needed (neither alone is sufficient)
- DEither statement alone is sufficient
Step-by-Step Solution
I gives only a difference and II only the son's age. Together the father is 12 + 30 = 42 years old.
Answer: C) Both statements together are needed (neither alone is sufficient)