Question

buna vreau sa imi fac tema dar nu stiu.Un automobil a parcurs o distanta in 3zile.In prima zi a parcurs 35%din intreaga distanta in a doua zi a parvurs 80%din rest.Stiind ca in ultima zi a parcurs 260km calculati lunginea intregii distante

Answer 1

x=lungime drum
35%x=35x/100=7x/20= ziua 1
x-7x/20=13x/20=rest
13x/20 ×80%=13x/20 ×80/100=13x/25=ziua 2
7x/20+13x/25+260=x
35x+52x+26000=100x
13x=26000
x=2000 km