Answers

2016-02-11T13:59:38+08:00
N=5/m=24...................
0
^You are correct. But in lowest term, n=1 and m=120.  Therefore, the proportion is 1:6 = 20:120. Again, you are also correct:-)
2016-02-14T17:13:30+08:00
I guess the value of n must be 5, so no need to reduce it into lowest term?

Now, we have:

5 : 6 = 20 : m

The product of the means must be equal to the product of the extremes.
(6)(20) = 5m
120/5 = 5m/5
24 = m

Values:
n = 5 ;and
m = 24

I hope it help ^-^ also, just please, kindly correct me if I'm wrong, thanks 
0
^You are correct. But in lowest term, n=1 and m=120.  Therefore, the proportion is 1:6 = 20:120. Again, you are also correct:-)