QR of Topscore pro help!

[junecep]

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A candy store mixes jaw breakers worth 36 cent a pound with lolly pops worth 53 cent a pound to make a 200 pound mixture worth 40 cent a pound. How many pounds of the lolly pops did the store use? 🙄
Also, is there any seach option to find question and answers easily?
for example
Title Biology chem Orgochem QR PAT
subcategory topscore question(mostly this part) reply answers
kaplan blue/red book question reply answers
Acedat reply answers
etc. other source question reply answers

 

[luder98]

A candy store mixes jaw breakers worth 36 cent a pound with lolly pops worth 53 cent a pound to make a 200 pound mixture worth 40 cent a pound. How many pounds of the lolly pops did the store use?

# (lbs) of jaw breakers: x
# (lbs) of lolly pops: y

x + y = 200 ---> x = 200 - y
36x + 53y = 40*200 = 8000
---> 36(200-y) + 53y = 8000
or 7200 - 36y + 53y = 8000
or 17y = 800
or y = 47 (lbs)

 

[jk5177]

I struggled with those problems too. What I did was went to the library and checked out algebra 2 books. Those books tend to contain these kind of word problems.

Make sure you know these kind of "rates" questions, because they are guaranteed to show up on the DAT.