The correct answer is 12. Although the question is unclear that should be the correct answer judging by your input.
Answer: rectangular prism and cylinder
Step-by-step explanation:
6/1 ÷ 3/5
You always flip the second fraction and turn the ÷ to a ×.
6/1 × 5/3 simplified to 10/1 (or 10)
Answer : 10