- AStatement II alone is sufficient but Statement I alone is not
- BStatement I alone is sufficient but Statement II alone is not
- CEither statement alone is sufficient
- DBoth statements together are needed (neither alone is sufficient)
Step-by-Step Solution
I: M + 10 = 2(M - 10) gives M = 30. II: M + (M - 6) = 54 gives M = 30. Each alone fixes the age.
Answer: C) Either statement alone is sufficient