Question

media aritmetica a doua nr este 24 cal nr stiind ca raportul lor este 3

Answer 1

$\frac{a+b}{2}=24=\textgreater a+b=48$

$\frac{a}{b}=3=\textgreater a=3b$

$3b+b=48$

$4b=48$

$b=12$

$a=36$

Answer 2

a+b/2=24
a+b=48
a/b=3 => a=3b

a+b=48 /
a=3b. / => 3b+b=48
4b=48
b=12
a=3b=3*12=36