Question

if a/b =3/4
then find the value of (7a-4b): (3a +b)
b 4
(1) 7:1
(2) 5:13
(3)12:1
(4) 13:5​

Answer 1

Answer:

a=3 and b4

7a-4b = 7×3-4×4

=21-16

=5

3a+b = 3×3+4

=9+4

=13

The answer is 5:13