Please answer this question from chemical kinetics

Please answer this question from chemical kinetics The reaction 2N205(g) -+ 4N02(g) + 02(g) follovß first order kinetics. The pressure of a vessel contair-irgorii N205 was found to increase from 50 mm Hg to 87 S mm Hg in 30 min. The pressure exerted by the gases after 60 min. will be (Assume temperature remains constant) • (l) 125 mm Hg (3) 11625 mm Hg (2) 106.25 mm Hg 4/120, online) (4) 150 mm Hg