Question

If x:y=2:3 y:z=4:7 then x:y:z= ?

Answer 1

Step-by-step explanation:

x:y = 2:3. (a)

2y=3x

y=(3/2)x

y:z=4:7

y=(4/7)z

z:x=21:8. (b)

Multiplying and dividing (a) by 4 we get

x:y = 4*2:4*3

x:y= 8:12. (c)

x:y:z=8:12:21