Question
If the weight of 7 books is 120 lbs and the weight of 15 books is 225 lbs. The unit rate of greater weight per book is ________.
- 18
- 15
- 17.14
- 14.26
The correct answer is: 17.14
In the question we were given with two cases in case 1 the weight of 7 books is 120 lbs and in case2 weight of 15 books is 225 lbs we were asked to find the greater weight per book
In case 1:
No of books = 7
Total weight = 120 lbs
weight of each book = 120/7 = 17.14 lbs
In case 2:
No of books =15
Total weight = 225 lbs
weight of 1 book = 225/15 = 15 lbs
Greater weight = 17.14 lbs
We first found per book weight in both ccases and then compared them to obtain the greater weight per book i.e; 17.14 lbs
Related Questions to study
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