- AStatement II alone is sufficient but Statement I alone is not
- BBoth statements together are needed (neither alone is sufficient)
- CStatement I alone is sufficient but Statement II alone is not
- DEither statement alone is sufficient
Step-by-Step Solution
The only perfect square between 20 and 30 is 25, so I alone works. In the 20s, only 25 has digits summing to 7, so II alone also gives 25.
Answer: D) Either statement alone is sufficient