Answer:
80 cm
Explanation:
From the diagram attached,
Sum of clockwise moment = sum of anticlockwise
ΣACW = ΣCW
20x = 80(100-x)
Solve for x
20x = 8000-80x
20x+8x = 8000
100x = 8000
x = 8000/100
x = 80 cm.
The position of its pivot from the 20 N end is 80 cm.
