Răspuns :
Pai sunt 60% banane, kiwi, portocale => 40% din total sunt mere. 40/100*20=8. Deci sunt 8 tone de mere. Si gata. :)
30℅20.......banane
10℅20.......kiwi
20℅20.......portocale
40℅20..........mere[100-(30+10+20)]
30/100*20=6t banane
10/100*20=2t kiwi
20/100*20=4t portocale
40/100*20=8t mere
10℅20.......kiwi
20℅20.......portocale
40℅20..........mere[100-(30+10+20)]
30/100*20=6t banane
10/100*20=2t kiwi
20/100*20=4t portocale
40/100*20=8t mere