Question

Which of the following cannot be seated at either end?

• A. C
• B. D
• C. F
• D. G

Answer 1

The correct option is C

F

Let us 1st tabulate the given data:
$\begin{array}{ccccccc}\text{1}& \text{2}& \text{3}& \text{4}& \text{5}& \text{6}& \text{7}\\ \text{C}& & & \text{B}& \text{D}& \text{A}& \text{G}\\ \text{D}& & & \text{B}& \text{C}& \text{A}& \text{G}\\ \text{D}& & & \text{B}& \text{C}& \text{G}& \text{A}\\ \text{C}& & & \text{B}& \text{D}& \text{G}& \text{A}\end{array}$
From the given options, F is the only possibility.