Question

raportul a doua numere naturale este 5 supra 3 si suma lor este 32.Calculati cele doua numere

Answer 1

a/b=5/3

a+b=32

⇒a=5b/3

5b/3+b=32

5b+3b=96

8b=96

b=12

⇒a=32-12=20

Answer 2

a/b=5/3
a/5=b/3
a=5k
b=3k
5k+3k=32
8k=32
k=32:8
k=4
a=5x4=20
b=3x4=12