Answer:
3 to 10
Step-by-step explanation:
Since the ratio of true to false questions is 3:7, there are 3 true questions for every 7 false questions. This means that when there are 3 true questions, there are 7 false questions plus the 3 true questions meaning there are 10 questions in total. This results in a ratio of 3:10 true to total questions.
