Răspuns :
2p=3 m
4p=165 lei
1. aflam cat costa o papusa
165:4=41.25
2. cat costa 3 masinute
2*41.25=82.5
si acum facem su regula de 3 simpla
3 masinute......82.5
5 masinute......x
x=5*82.5/3
x=137.5
4p=165 lei
1. aflam cat costa o papusa
165:4=41.25
2. cat costa 3 masinute
2*41.25=82.5
si acum facem su regula de 3 simpla
3 masinute......82.5
5 masinute......x
x=5*82.5/3
x=137.5
165:2 =82, 5 lei (costa doua papusi )
82,5:2=41,25 lei
trei masinute costa 82,5 lei
82,5:3= 27, 5
27, 5 x 5 =137,5 lei (costa 5 masinute )
82,5:2=41,25 lei
trei masinute costa 82,5 lei
82,5:3= 27, 5
27, 5 x 5 =137,5 lei (costa 5 masinute )