Simultaneous Concept

by Emily

1600 participants took part in an event with mass dance and taiji activities. 30% of the 1300 mass dance participants were adults, while 40% of the taiji participants were children. Following a break, some participants from mass dance switched to taiji and some from taiji switched to mass dance. After the switch 25% of the mass dance participants were adults and 75% of the taiji participants were adults. How many mass dance participants were there after the break?

I think this is a case of a constant total but the variables are not constant and I cant seem to run away from simultaneous equations on this. I would appreciate your help on this! thanks!

Here's My Answer
by Zach

To view my solution to this question, Click here

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Ask Grade 6 Question or Post Answer/Comment.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.