It is time to post the solution to the Tables, Baskets and Shirts algebra maths puzzle that was posted earlier this month.
If you have not had a go at solving this puzzle and registering your answer on the poll; Stop reading the solution, click on the link above and go do it now.
The puzzle image is shown below:
Here is the “initial” solution:
- There are three tables which total 30, so each table is 10.
- There are three baskets which total 15, so each basket is 5.
- There are three shirts which total 24, so each shirt is 8.
- The final sum is 8 + 5 x 10.
- Doing multiplication first gives 8 + 50.
- So the final answer is 58 …. Which is incorrect.
Look closer at the image and you will notice the following:
- The tables have a shirt on them so you must calculate shirts first.
- There are two shirts on the first part of the third line.
- The final equation has 2 baskets and the table without a shirt.
So let’s start again with the correct solution:
- There are three tables with shirts with total 30, so each table with shirt is 10.
- There are three baskets which total 15, so each basket is 5.
- There are four shirts which total 24, so each shirt is 6.
- Table with shirt is 10 and shirt is 6 so table only is 4.
- The final sum is 6 + 2(5) x 4 which equals 6 + 10 x 4.
- Doing multiplication first gives 6 + 40.
- So the final correct answer is 46.
Where you really observant? Did you get it right? At the time of posting the solution, 46% of respondents on the poll were correct, which is pretty good. The second most popular response was the initial incorrect answer with 13%.
Keep safe, well and sane.
David
This article was originally posted on http://www.winthropdc.com/blog.