If two adjacent angles of a parallelogram are (2x + 30)° and (3x – 15)°. Then the value of x is :

36° 39° 33° 35°

33°

Sum of two adjacent angle of a parallelogram = 180°. So, (2x + 30) + (3x – 15) = 180°. 5x + 15 = 180° 5x = 165. x = 33