Question

daca a/5 = b/3 = c/6 si a+b+c = 210, atunci b =`?

Answer 1

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=>k=15

b=3·15=>b=45