Question

If

a.(b +

c.= 1 : 3 and

c.(a +

b.= 5 : 7, then

b.(a +

c.Is equal to select one:

a. 2 : 1

b. 1 : 3

c. 2 : 3

d. 1 : 2

Answer 1

I think it is

C)2:3

This is by my thinking...

If it is correct plzz reply