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a) 25 kN b) 160 kN-m c) 67.5 kN d) 164.1 kN-mThese are the answers please show workConsider the simply-supported 12-meter span subjected to the load train as shown below. 20 kN 40 kN 25 kN 1.5 m a) Use the increase -decrease method to determine the maximum absolute shear force at the midspan of the beam. Clearly show the position of the load train, corresponding to the maximum shear force, on the figure below. A. 12 m- b) Use the increase - decrease method to determine the maximum absolute bending moment at the midspan of the beam. Clearly show the position of the load train, corresponding to the maximum bending moment, on the figure below.

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