Last year, Vicki rented 131 videos, and Chris rented 80 videos. Together they rented 173 more videos than the average couple rents in a year. How many videos does the average couple rent in a year?

Answer: 38 Videos

Step-by-step explanation:

Add Vikki's and Chris's videos (131+80=211)

If they rented 173 more than the average couple you need to subtract Vikki's and Chris's amount from 173 (211-173=38)

That will give you the average videos other couples rent

The average couple rents 38 videos in a year.

Solution:

Given that Vicki rented 131 videos and chris rented 80 videos. We have to find out how many videos does the average coupe rent in a year.

In the question it is given that Vicky and chris rented 173 more videos than the average couple. This means that difference between the number of videos Vicky and chris rented together and that of average couple is 173.

Videos rented by (Vicky + chris) - videos rented by average couple = 173

(131+80) - videos rented by average couple = 173

211 - videos rented by average couple = 173

211-173 = videos rented by average couple

38 = videos rented by average couple.

Thus average couple rents 38 videos in a year.