1)

If A:B:C=2:3:4, then AB:BC:CA  is equal to :


A) 5:4:11

B) 7:11:32

C) 1:4:9

D) 8:9:24

E) 7:11:9

Answer:

Option D

Explanation:

Let A=2x, B=3x and C=4x.

Then, AB =2x3x =23,

BC  =3x4x =34 and CA =4x2x =21

(AB):(BC):(CA)  =(23):(34):(21)

=8:9:24