2/5 м^3
2/5×100=200/5=40
ответ 40см^3
Делители 72 = 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.
Делители 96 = 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96.
Делители 120 = 1, 2, 3, 4, 5, 6, 8, 10 , 12, 15 , 20, 24, 30, 40, 60 ,120.
1)412
2)335
3)322
4)1552
5)991
6)444
7)1352
8)512
9)38
10)40
11)336
12)5424
13)3826
у+45=187
у=187-45
у=142
Х-65:5=47
Х-13=47
Х=47+13
Х=60