, , , — . , , , . , : () ()!
, 100 100, , 30 .
, , N = 1/20 = 100/20 = 5 = N/2 = 5/2 = 2,5. , (1), , ( , , ). (1) (3).
1. , , 5N 5N = 25 25.
2. 1,5N = 7,5.
3. 1N = 5.
4. , 1 = 2,5 . .
5. . 3N = 15. .
6. : = 100. , = 20N ( ) 21N ( ). .
7. , 100-25 = 75/2 = 32,5. .
8. , 2,5N = 2,5*5 = 12,5. , 2N = 10 . .
, .
1. 11 = 2,52,5.
2. 1N = 5. 1/4 = 2,5/4 = 0,6.
3. ( .1) , .2 ( ).
4. . 1N = 5 .
5. (.4 ).
6. 1 = 2,5 .
7. 1 = 2,5.
8. .
! . , .
, — , - .
, , , , , . , .