Question

The multiplicative inverse of $-1\times \frac{-2}{5}$ is $\frac{p}{2}$, $p$ is

Answer 1

As per the given equation,
$[-1\times -\frac{2}{5}=\frac{2}{5}]$ and its multiplicative inverse is $\frac{5}{2}$

Comparing this value with $\frac{p}{2}$ we have $p=5$.