Question

Un biciclist parcurge zilnic cu 25 km mai mult decit in ziua precedenta.In 4 zile consecutive a parcurs 310km.Aflati citi km a parcurs in fiecare zi.

Answer 1

a+a+25+a+25+25+a+25+25+25=4a+25*6=4a+150=310
=>4a=160 => a=40

Answer 2

a+b+c+d=310
b=a+25
c=b+25
d=c+25

310-(25+25+25)=
310-75=
235

235:4=57 (a)
57+25=82(b)
82+25=107(c)
107+25=132(d)

Sper ca te-am ajutat :) Coroana?