Question

clasa a 3 a. Suma a doua numere este 13000. Daca dublam primul numar si-l injumatatim pe al doilea, suma devine 14000. Sa se afle cele doua nr

Answer 1

a+b=13000
2a+b/2=14000
4a+b=28000
3a+a+b=28000
3a=28000-13000
3a=15000
a=5000
b=13000-5000=8000

Answer 2

a + b = 13000
2a +b/2= 14 000

4 a + b = 28 000
3a +a+ b = 28000
3a = 28000- 13000
3a = 15 000
a = 15000: 3
a = 5000
5000+ b = 13000
b = 13000- 5000
b = 8000