Question

LA O FERMA AVICOLA SUNT DE 4 ORI MAI PUTINE GASTE DECAT RATE. RATE SUNT CU 1020 MAI MULTE DECAT GASTE.CATE GASTE SUNT? CATE RATE SUNT?

Answer 1

g=r:4...........=> r=g*4
r=g+1020....=> r=1020:3*4

g) |___|
r)  |___|___|___|___|
            \---------------/=>1020
---------------------------------------
1020:3+1020:3*4=
=340+340*4
=340+1360
=1700 pasari in total

verificare

g=1360:4
g=340 gaste

r=340+1020
r=1360 rate

1360-340=1020 mai multe rate decat gaste

Answer 2

Rate:4= gaste sau 4•gaste= rate (1)
Gaste+1020= rate (2)

Inlocuieste (1) in (2)
Gaste +1020=4 gaste
1020=4gaste-gaste
1020=3 gaste
1020:3= gaste
Gaste=340
Rate=4•340=1360