Question

1) Doua robinete umplu un rezervor in 12 ore.In cate ore umplu acelasi rezervor 8 robinete ?


2) 6 muncitori termina o lucrare in 10 zile . In cate zile termina lucrarea 5 muncitori?

Answer 1

1) 2 robinete....12 ore
8 robinete....x ore
2/8=x/12
x=(2x12):8
x=24:8
x=3 ore

2) 6 muncitori.... 10 zile
5 muncitori.... x zile
6/5=x/10
x=(6x10):5
x=60:5
x=12 zile