GATE 2025 Question 59: IS-LM model

Let $Y$ be income, $r$ be interest rate, $G$ be government expenditure and $M^s$ be money supply.

Consider the following closed economy IS-LM equations with fixed general price level ($\bar P$)

IS equation: $Y = 490 + 0.6Y - 4r + G$

LM equation: $\dfrac{M^s}{\bar P} = 20 + 0.25Y - 10r$

If $G$ is 330 and $\dfrac{M^s}{\bar P}$ is 500, then the equilibrium $Y$ is ______ (round off to one decimal place)