Question

Un automobil consuma 16 l de benzinala 200 km.
Cati centilitri de benzina consuma pe o distanta de:
a) 400 km b) 50 km c) 350 km

Mama a preparat pentru iarna compot de cirese. L-a ambalat in 50 de borcane de 720 ml. Daca l-ar fi ambalat in borcane de 500 ml, ar fi avutnevoie de ............................... borcane

a) 36 b) 18 c) 72 d) 75



VA ROG REPEDE

Answer 1

16 l =1600 cl

A)1600 cl ....200 km
X cl ...... 400 km
______
X=1600x400:200
X=640000:200=3200 cl pt 400 km
B)
1600 cl ..... 200 km
X cl .... 50 km
_____
X=1600x50:200=80000:200=800 cl
Pt 50 km

C) 1600 cl ..... 200 km
X cl ..... 350 km
_______
X=1600x350:200
X=560000:200
X=28000 cl pt 350 km

50 borcane ..... 720 ml
X borcane ..... 500 ml
______
X=50x720:500
X=36000:500
X=72 borcane


Succes!