Five children were administered psychological tests to know their intellectual levels. In the report, psychologists pointed out that the child A is less intelligent than the child B. The child C is less intelligent than the child D. The child B is less intelligent than the child C and child A is more intelligent then the child E.
Which child is the most intelligent ?
Answer: C. D
We have sequence : A < B, C< D, B < C and E < A.
So, the sequence becomes : E < A < B < C < D.
Clearly, child D is the most intelligent.