Question

If P (10, r) = 5040, then r =

• A. 2
• B. 4
• C. 6
• D. 8

Answer 1

The correct option is B 4

$\frac{\angle 10}{\angle 10.r}=5040=\frac{\mathrm{10.9.8.7}\angle 6}{\angle 6}=\frac{\angle 10}{\angle 6}$
$\Rightarrow 10-r=6\Rightarrow r=4$