Chemical Kinetics: JEE Main 2026 Chemistry question

Decomposition of A is a first order reaction at T(K) and is given by $\mathrm{A(g)\longrightarrow B(g)+C(g)}$. In a closed 1 L vessel, 1 bar A(g) is allowed to decompose at T(K). After 100 minutes, the total pressure was 1.5 bar. What is the rate constant (in min$^{-1}$) of the reaction? (log 2 = 0.3)