JEE Main 2023 Chemistry question

For a reversible reaction AB, the = 20 kJ . The activation energy of the uncatalyzed forward reaction is 300 kJ . When the reaction is catalysed keeping the reactant concentration same, the rate of the catalysed forward reaction at 27°C is found to be same as that of the uncatalyzed reaction at 327°C. The activation energy of the catalysed backward reaction is kJ .