Question

6400 pungi de 1 kg de paste fainoase => 6400 kg paste fainoase.
Cate pungi de 500g avem nevoie pentru a rezulta tot 6400 kg paste fainoase?
Cate pungi de 250g avem nevoie pentru a rezulta tot 6400 kg paste fainoase?

Answer 1

pa=paste

pu=pungi

6400 pu...........1kg................6400kg pa

? pu .................500g..............6400kg pa

? pu..................250g...............6400kg pa

6400 pu.........1kg............6400kg pa

=>1 pu ......1kg.........6400:6400=1kg

=>1 pu .......1kg........1kg pa

=>1 pu ......500g.......500g pa

=>1 pu .......250g.......250g.pa

x pu........500g........6400kg pa

500g=1/2 ×1 kg => ×=6400×2=12806 pu

x pu .......250g.........6400kg pa

250g=1/4×1 kg =>x=6400×4=25600 pu

Sper ca te-am ajutat