Number Sense Blog

    Word Problem Wednesday: Feasting with Friends

    By Mathnasium | Added Jan 10, 2018

    The best banquet is the one you can share with your buddies! Even bare fare such as bread and butter is made better by sharing. But before you dig in, you’ll want to make sure you have enough. In this week’s math word problem challenge, Benjamin and Jerry had plenty of baguette to share between them, but just for fun, let’s figure out how much Jerry ate. Check out the challenge below and use your elementary-level fraction and multiplication skills to find the answer.  

    Challenge: Benjamin and Jerry shared a brie and butter baguette for dinner. Benjamin ate 3/10 of the baguette, and Jerry ate 2/5 of it. The uneaten part of the baguette weighs 41/2 ounces. How many ounces of the baguette did Jerry eat?

    When you're ready, check out the solution below.

    Solution: First, we need to know what fractional part of the sandwich is uneaten. Since Benjamin ate 3/10 and Jerry ate 2/5 = 4/10, they ate 7/10 of the baguette in total. That means that the remaining 3/10 of the baguette weighs 41/2 ounces. Each tenth of the baguette therefore weighs 41/2 ÷ 3 = 11/2 ounces. So, since Jerry ate 4/10 of the baguette, his piece was 11/2 × 4 = 6 ounces.


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