1. :
5000 20W = 2000 + 10W.
5000 2000 = 20W +10W.
W = 3000: 30 = 100 (.).
:
5000 20 100 = 3000 (. .).
Y:
3500 5W = 1500 + 5W.
W = (3500 1500): 10 = 200 (.).
Y:
3500 5 200 = 2500 (. .).
2. Y , Y.
3. 10 ., : 5000 20 110 = 2800 (. .), : 2000 + 10 110 = 3100 (. .).
, 300 . .
4. 300 . . , :
3500 5W (1500 + 5W) = 300
2000 300 = 10W
W = 170 (.).
3
: , , , , . - .
:
1) ;
2) ;
3) - , :
;
.
, , . , , . , , , . .
4
:
, . | , . | |
Dl = 120 6W | S1 = 80 + 2W | |
D2 = 140 2W | S2 = 60 + 6W |
W , .
1. .
2. ?