Mutual Inductance question from MHT CET 2026 (15 May, Shift 2)

Two coils $P$ and $Q$ are separated by some distance. When a current of $3\text{ A}$ flows through coil $P$, a magnetic flux of $10^{-3}$ Wb passes through $Q$. No current is passed through $Q$. When no current passes through $P$ and a current of $2\text{ A}$ passes through $Q$, the flux through $P$ is $x \times 10^{-3}$ Wb. The value of $x$ is