Question

Suma a trei numere este 43 526.Suma ultimelor doua numere este 27 648,iar diferenta lor este 148.Aflati cele trei numere.

Answer 1

a+b+c=43526 b+c=27648 b-c=148 a+27648=43526=>a=15878 (b+c)+(b-c)=27648+148 (b+c)+(b-c)=27796 27796:2=13898 nr b 13898+c=27648 =>c=13750

Answer 2

a+b+c=43526
b+c=27648
⇒b=c+148;
⇒c+148+c=27648
⇒2c+148=27648
⇒2c=27648-148
⇒2c=27500;
⇒c=13750;
⇒b=13750+148
⇒b=13898;
⇒a=[a+b+c]-[b+c]
⇒a=43526-27648
⇒a=15878;