Răspunsuri

2014-07-03T15:39:44+03:00
I___I___I___I___I___I  A
I___I___I___I___I  B
I___I  A-B
daca A-B=B/4⇒A=B/4+B
B/4+B+B=702, aducem la acelasi numitor 4
(B+4B+4B)/4=702
9B/4=702
9B=4*702
9B=2808
B=2808/9
B=312
A=702-312
A=390
390-312=312/4
78=78