Explicație pas cu pas:
0,1×{3 +3,2×[100×0,01+5,2×(4-1,2×0,1)]}=
=0,1×{3+3,2×[100×0,01+5,2×(4-0,12)]}
=0,1×[3+3,2×(100×0,01+5,2×3,88)]
=0,1×[3+3,2×(1+20.176)]
=0,1×(3+3,2×21,176)
=0,1×(3+67,7632)
=0,1×70,7637
=7,07637
