Page 1 of 1 [ 4 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Advanced Word Problems and Quantitative ReviewPosted: Thu Jul 08, 2010 8:52 am

Joined: Sun Apr 04, 2010 2:11 pm
Posts: 8
Hello ,

Please solve the problem number 2 of this book using your own numbers instead of the variables.
The solution of this problem in the book is done by using the variables.

thanks,
bandita

Top

 Post subject: Re: Advanced Word Problems and Quantitative ReviewPosted: Thu Jul 08, 2010 5:35 pm

Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
Bandita,

Are you referring to problem number 2 on page 5?

If so, I'm sorry. I don't understand your questions. All of the answer choices are in terms of variables, so to solve the problem efficiently, we would need to keep the problem in variables as well.

- Veritas Help

Top

 Post subject: Re: Advanced Word Problems and Quantitative ReviewPosted: Thu Jul 15, 2010 2:14 pm

Joined: Sun Apr 04, 2010 2:11 pm
Posts: 8
Oh , I'm so sorry for that !

My question for this question was that, I had tried solving this question using numbers instead of variables, but couldn't solve it by doin so.

If you can solve it using numbers, then it will be a great help !

Yes, its the prob no.2 on page 5 of the book Advanced Word Problems and Quantitative Review.

Thanks,
Bandita

Top

 Post subject: Re: Advanced Word Problems and Quantitative ReviewPosted: Mon Jul 19, 2010 6:23 am

Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
Ok - this may not help much, but here goes:

A car company manufactures 10 cars at a cost of \$7 per car. (thus x=10 and c=7)
If some cars are sold below cost at \$4 per car, then the rest are sold at normal retail price of \$9 per car. (s=4, n=9)
Total cost is 70
Revenue is 4*(#at sale price) + 9*(# at retail price)
# at sale price is A and # at retail price is 10-A. We want to solve for A here, so i must leave it a variable instead of turning it into a number.

4A + 9(10-A) = 70
4A + 90 - 9A = 70
-5A = -20
5A = 2-
A=4

Then, we look at which of the answer choices will give us A=4.
A. 10(7-9) / 4-9 = -20 / -5 = 4 --> might be our right answer
B. 10(9-7) / 4-9 = 20/-5 = -4 --> can't be our right answer
C. 10(7-9) / 4-7 = -20/-3 --> can't be our right answer
D. 10(4-9) / 7-9 = -50 / -2 = 25 --> can't be our right answer
E. (10-9)(10-4) = 1*6 = 6 --> can't be our right answer.

Obviously, this is a much longer and more complicated way to approach the problem, but this is how it would work if you were to approach it this way.

Veritas Help

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 4 posts ]

 All times are UTC - 8 hours [ DST ]

#### Who is online

Users browsing this forum: No registered users and 2 guests

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

 Search for: