Answer
Width of chair = 72 cm.
Steps
Let x be the width of the chair.
By the given condition 200 = 3x -16
Or 3x = 216
x = 216/3 = 72 cm.
Width of chair = 72 cm.
Let x be the width of the chair.
By the given condition 200 = 3x -16
Or 3x = 216
x = 216/3 = 72 cm.