Question

1 2 3 4 si 5
varogggg mult

Answer 1

1)
     1        1
14--- - 1 --- =13kg.
     2        2

2)

1     2      5       8
--- +--- +---- = ---- (1 cutie dulciuri)
8     8     8        8

3)

9      3      4        2
--- - ---- - ---- = -----
9      9      9       9 brazi

4)

t)     |_______|
50%|___|
----------------------
1200+(1200:3)=
=1200+400
=1600 lei costa tableta inainte de scumpire

1600+(1600:2)=
=1600+800
=2400 lei costa tableta dupa scumpire

2400-(2400:2)=
=2400-1200
=1200 lei costa acum ,tableta