If M:N = 3:5 and N:O = 5:8 then M:N:O is Choices.
A) 6:7:8	B) 2:7:8	C) 3:7:9	D) 4:7:8	E) 3:7:8
Solution:   M/N = 3/5;   N/O = 5/8;   M:N:O = 3*5:5*5:5*8 = 15:35:40 = 3:7:8   Answer: Option 3:7:8
<result>E</result>
If M:N = 3:5 and N:O = 5:8 then M:N:O is