Why I haven't sound ?

Hey, I tried something:

if(other.transform.tag == "Player")
{
	GetComponent<AudioSource>().Play();
	GameManager.currentScore = GameManager.currentScore + 250;
	Destroy (gameObject);
}

… but the sound isn’t there…

probably because you are destroying the gameobject before the sound plays?
Try putting collision code within the player script (and also the audiosource & clip)