by kathy
(lake st louis)

Each of the 50 campers could earn 1 of 3 different types of boating badges. Of all the campers, 20% got sailing badges, 50% earned rowing badges, and 10% received canoeing badges. How many campers did not earn a badge for some sort of boating?

Here's My Answer
by Zach

Step 1: This question involves the Part-Whole Concept and the Percentage Concept. For percentage questions, it is usually easily to comprehend by converting the percentages into fractional parts.

Since 20% got sailing badges, we draw 2 boxes to represent 20% of the campers, 50% got rowing badges, we draw 5 boxes to represent 50% of the campers, 10% got canoeing badges, we draw 1 box to represent 10% of the campers.

Thus, the remaining 20% should have not gotten any badges, so we draw 2 boxes to represent 20% of the campers. We then draw a bracket to the right of the model to show the total of 50 campers.

To see the rest of the answer, 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 5 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.