Answer:
They hit at the same time
Explanation:
The bullet that is fired horizontally, the horizontal component of the speed is the speed with which is its is fired and the vertical component of the speed comes in picture due to gravity only.
When the bullet is dropped from the same height, the horizontal component is zero but the vertical component arises from the gravity.
The vertical components of the velocity of both the bullets are same and thus, they fall at the same time.
Answer: They hit at the same time