Bridge piers

One quarter of the bridge pier is sunk into the ground. Two thirds are in the water. Protruding above the water is 1.20 m long. Determine the height of bridge piers.

Correct result:

x =  14.4 m


x/4+2/3 x + 1.2 = x

x/4+2/3•x + 1.2 = x

x = 14.4

x = 72/5 = 14.4

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