Mathematics knowledge · Difficulty 2
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
A rectangle has perimeter 30 and length 9. What is its width?
- 6
- 7
- 12
- 21
Reveal answer and explanation
6
2L + 2W = 30. Then 18 + 2W = 30, so W = 6.