Question

2/3 4 3 3 5 2 5 7 b+=c.- a b + c. 5 5 4 2 3 2 a + b a 5 6​

Answer 1

Answer:

If a : (b + c) = 1 : 3 and c : (a + b) = 5:7 then b : (a + c) is equal to