A is elder to B while C and D are elder to E who lies between A and C. If C be elder to B, Which one of the following statements is necessarily true ?
Answer: D. E is elder to B
In terms of age, we have : B < A, E < C, E < D, B < C. Since E lies between A and C, the sequence becomes : B < A < E < C < D or B < A < E < D < C. Clearly, whichever may be the case, E is elder to B. Hence, (d) is necessarily true.