Posted by **Zachary** on Wednesday, January 14, 2009 at 10:33pm.

of ten boxes, five contain pencils, four contain pens, and two contain both pencils and pens. How many boxes are empty??

- algebra -
**Ms. Sue**, Wednesday, January 14, 2009 at 10:38pm
Your question isn't clear.

Evidently, the two containing both pencils and pens are included in the first part of the question. Therefore, only one box may be empty.

- algebra -
**Gen**, Friday, October 21, 2011 at 8:48am
Or is it possible the two that contain pens and pencils can kind of cross over. 3 boxes Pens only, 2 boxes pencils only, 2 boxes pens and pencils combined. So that would leave 3 boxes empty ? That would also work out to 5 boxes with pens, 4 boxes with pencils and 2 with both and remain under 10.

## Answer this Question

## Related Questions

- math-algebra - There are 10 boxes,if 7 contain pens,3 contain pens and pencils,2...
- Algebra - Gerry had a total of 30 pens and pencils. He decided to trade with his...
- Math - I need help on how to explain to my 5th grader how to come up with an ...
- math - Gerry had a total of 30 pens and pencils. He decided to trade with his ...
- math - Assume that the student has a cup with 14 writing implements: 7 pencils, ...
- math, help - how do i write the equations so i can solve it i will do the ...
- math - Tom has $10 that he wants to use to buy pens and pencils. However, he ...
- pre algebra - A college bookstore ordered 6 boxes of red pens. The store sold 32...
- Math - In a store, pencils have one price and pens have another. 3 Pencils and 2...
- Math - Ratio of pens to pencils is 3:8; What could be the total number of pens ...