Solve this question with full working and explanation and I will mark you as brainliest.

Answer:
The hand moved [tex]\bf \frac{3}{4}[/tex] of a complete turn.
Step-by-step explanation:
The hand moved from 3 to 12, that is, it moved:
12 - 3 = 9 hours
In a clock, 12 hours represent a complete turn.
∴ Using the unitary method:
12 hours ⇒ 1 turn
1 hour ⇒ [tex]\frac{1}{12}[/tex] turns
9 hours ⇒ [tex]\frac{1}{12}[/tex] × 9 = [tex]\frac{9}{12}[/tex]
= [tex]\bf \frac{3}{4}[/tex] turns (simplified)
∴ The hand moved [tex]\bf \frac{3}{4}[/tex] of a complete turn.
The answer is [tex]\boxed{\frac{3}{4}}[/tex].
To find the fraction of a complete turn it moved in this case, take the ratio between hours covered between 3 and 12, and the hours covered in a complete turn.