Answer:
D or 1/27
Explanation:
1/3 ÷ 9 or you can reverse it to 1/3 x 1/9 which equals 1/27
D 1/27 hour per question
She answered 9 questions
She took 1/3 of an hour total
We want to find time per question
1/3 ÷ 9
Copy dot flip
1/3 * 1/9
1/27 hour per question
4.9m questions
6.4m answers