|
, , |
|
|
.3: - (20+2) 0 - (90+5) 0 |
5 2 |
|
30÷38 %, . |
1) |
115÷130 /2 |
2) |
20÷25 |
|
1÷2 |
, |
45 |
, |
1 |
-4 , |
10-14 |