Question

aflati numerele naturale x, y si z stiind ca sunt direct proportionale cu 2, 3 si 5 iar produsul lor este 810

Answer 1

x,y,z d.p  2,3,5⇒x/2=y/3=z/5

x₊y₊z=810

x=2k

y=3k

z=5k

2k₊3k₊5k=810

10k=810÷10=

k=81

x=2k

x=2×81=

x=162

y=3k

y=3×81=

y=243

z=5k

z=5×81=

z=405

v=162₊243₊405=810