Question

problem a 7 va roggggggg repede .

Answer 1

nr total de fructe: 900 kg
mere =pere+180 kg
 mere + pere=900kg
pere+180+pere=900kg
2pere+180=900kg/-180
2pere=720 kg/÷2
pere=360kg
⇒mere=pere+180=360+180=540kg

Answer 2

mere|—|=360kg ..............} 900kg
Pere |—|+180kg=540kg }

|—|........................}900-180=720kg
|—|=720:2=360kg}