Question

a/5=b/3=c/6 sia+b+c=210 b=?​

Answer 1

Răspuns:

a=5k ;   b=3k ;   c=6k ;     5k+3k+6k=210 ;    14k=210 ;k=210:14=15 ;         b=3*15=45

Explicație pas cu pas:

Answer 2

Răspuns:

a/5=b/3=c/6 = k

<=>  a=5k; b=3k; c=6k;

a+b+c= 210

=> 5k+3k+6k = 210

<=> 14k=210 => k = 210/14= 15   => a= 5*15=75; b=3*15=45; c=6*15=90