Răspuns :
drum 1 |----|
drum 2 |----|----|
1) 1+2 = 3 (parti egale)
2) 21 km : 3 = 7 km (drum 1)
3) 7 km x 2 = 14 km (drum 2)
drum 2 |----|----|
1) 1+2 = 3 (parti egale)
2) 21 km : 3 = 7 km (drum 1)
3) 7 km x 2 = 14 km (drum 2)
Cati km are primul drum?
21:3=7 km
Dar al doilea drum?
7x2=14
7 km + 14 km=21 km
21:3=7 km
Dar al doilea drum?
7x2=14
7 km + 14 km=21 km