Answer:
During the month of september there where 60 commercial vehicles and 168 non commercial vehicles.
Step-by-step explanation:
we have that the ratio between non-commercial vehicles and commercial vehicles is 14:5
n = number of non commercial vehicles during september
c = number of commercial vehicles during septemer
We know that if we add the commercial (c) vehicles with 108 we will have the non-commercial (n) vehicles
n = c + 108
so we need to do the equivalent ratios to know which is the value of c
replace n
Then the number of commercial vehicles is 60 and the number of non commercial vehicles is:
n = 60 + 108
n = 168
There are 168 non commercial vehicles during september
We can solve this problem in another way by calculating equivalent ratios until we fulfill the condition that the non commercial vehicles equals the commercial vehicles plus 108 then we have:
14:5 <em>difference 9</em>
28:10 <em>difference 18</em>
42:15 <em>difference 27</em>
56:20 <em>difference 36</em>
70:25 <em>difference 45</em>
84:30 <em>difference 54</em>
98:35 <em>difference 63</em>
112:40 <em>difference 72</em>
126:45 <em>difference 81</em>
140:50 <em>difference 90</em>
154:55 <em>difference 99</em>
<h2><em>168:60</em> <em>difference 108</em></h2>
As the difference is 108 we have that there are 168 non commercial vehicles and 60 commercial vehicles during the month of september