Question

find a:b:c of you are given that (a) a:b =3:5 and b:c=4:9​

Answer 1

Answer:

$a:b:c=12:20:45$

Step-by-step explanation:

$a:b=3:5=12:20\\b:c=4:9=20:45$

∴$a:b:c=12:20:45$