Răspuns:
Explicație pas cu pas:
800x2 ..........1600+
40x2 ................80
3x5.......................5
1.685
-
700x3.....................2.100+
60x3...........................180
5x3................................15
2.255
-
-
900x5 .........................4.500+
30 x5...............................150
5x5.....................................25
4.675
-
-
800x7...............................5.600 +
60x7......................................420
9x7................................................63
6.083
