The question below is followed by two statements numbered I and II. Choose the option that describes whether the statements are sufficient to answer the question.
Who is the tallest among A, B, C and D?
I. A is taller than C, who is taller than B.
II. D is taller than C.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → The question cannot be answered even by using both statements together.
In data sufficiency, a statement is sufficient only if it leads to one definite answer; each statement is first tried alone, then the two together.
Statement I alone:
A > C > B, but D is not placed: not sufficient
Statement II alone:
D > C only; A and B are not placed: not sufficient
Both together:
A and D are both taller than C, and C is taller than B
A and D are never compared, so either could be the tallest: not sufficient even together