Question

Va roooog ex 11 este urgenttt

Answer 1

Stim a/3=b/4=c/6=k =>a=3k ; b=4k ; c=6k
Mai stim c/8=d/10=e/12=k' =>c=8k' ; d=10k' ; e=12k'
Egalam cei doi c si avem 6k=8k'  l:2 =>3k=4k' =>k'=3k/4
=>d=30k/4=15k/2
    e=36k/4=9k
In problema spune ca cei cinci turisti au parcurs impreuna 59 km :
3k+4k+6k+15k/2+9k=59  lx2
6k+8k+12k+15k+18k=118
59k=118 =>k=2
Deci a=3k=6 km
        b=4k=8 km
        c=6k=12 km
        d=15k/2=15 km
        e=9k=18 km