Question

Fie sirul de rapoarte egale asupra 3= b supra 7 = c supra 11 si a+b = 20. Determinati nr a, b, c

Answer 1

a/3=b/7=c/11=k => a=3k si b=7k
a+b=20 => 3k + 7k =20 => 10k = 20 |:10 => k=2 => a=3*2=6 si b = 7*2 =14
c/11= => c=11k => c=11*2 =22
Sper ca ai inteles. Succes in continuare !