6.4x12.5x0.5/(1.6x2.5x0.2)=
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6.4x12.5x0.5/(1.6x2.5x0.2)=
6.4x12.5x0.5/(1.6x2.5x0.2)=
6.4x12.5x0.5/(1.6x2.5x0.2)=
6.4x12.5x0.5/(1.6x2.5x0.2)
=(0.8x12.5)x(8x0.5)/[(0.4x2.5)x(4x0.2)]
=10x4/1/0.8
=40/0.8
=50
6.4x12.5x0.5/(1.6x2.5x0.2)=
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