Question

Afla produsul a trei numere a, b, c stiind ca : a+b=28, b+c=32, a+c=30
Va rog ajutati-ma!

Answer 1

a+b=28               b+c=32             a+c=30                              abc=?

c-a=32-28=4   

 c=a+4    c=30-a

a+4=30-a         2a=26             a=13

b=28-13=15

c=32-15=17

                    abc=17x15x13=3315