Question

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 is less intelligent than the child C and child A is more intelligent than the child E. Which child is the most intelligent ?

• A. A
• B. B
• C. D
• D. E

Answer 1

Answer: (C)

D

Answer 2

To determine the most intelligent child based on the provided information, let's summarize the relationships between the children:

$A$ is less intelligent than $B (A < B)$.
$C$ is less intelligent than $D (C < D)$.
$A$ is less intelligent than $C (A < C)$.
$A$ is more intelligent than $E (A > E)$.

Now let's combine this information:

$A < B$
$A < C < D$ (since $C$ is less intelligent than $D$, and $A$ is less intelligent than $C$)
$A > E$

Therefore, the hierarchy of intelligence from least to most intelligent is:
$E < A < C < D$.
Since $B$ is more intelligent than $A$, but there is no direct comparison between $B$ and $D$, we know the hierarchy of $A, C,$** ** and** ** $D$ but not between $B$ and $D$.

From the given information, $D$ is the most intelligent child.

So, the correct option is $(C): D$.