Question

Va rog am nevoie de rezolvare rapid!

Answer 1

54 intregi si 17/20 = (54 x 20 + 17) / 20 = 1 097/20 

1 pantalon = 1 intreg si 1/5 = ( 1x 5 +1) /5 = 6/5 
15 pantaloni = 15 × 6/5 = 3 x 6 = 18 m 

1 costum = 2 intregi si 3/10 = (2 x 10 + 3) /10 = 23/10 
8 costume = 8 × 23/10 = 4 x 23 /5 = 92/5 

18 + 92/5 = (5 x 18) /5 + 92/5 = 90/5 + 92/5 = 182/5 

1 097 /20 - 182/5 = 1 097 /20 - (4 x 182) /20 = 1 097 /20 - 728/20 = 369/20 =
= 18 intregi si 9/20 m

Raspuns: 18 m si 9/20 m