Question

Suma a trei numere este 607. Daca adun, pe rand, fiecare numar cu un numar X, obtin 435, 147 si respectiv 55. Care sunt cele 3 numere?

Answer 1

a+b+c=607    a+x=435     b+x=147     c+x=55     a+b+c+3x=637⇒607+3x=637⇒3x=30⇒x=10         a+10=435⇒a=425       b+10=147⇒b=137          c+10=55⇒c=45    R:a=425,b=137,c=45

Answer 2

435+147+55=637
607-637=30 3 de x
30:3=10 x
435-10=335 a
147-10=137 b
55-10=45 c