Question

If johnny had 6 apples and ava took 3 how many would she have left

Answer 1

I'm assuming you mean how many would Johnny have left. If not I am providing both answers. Johnny has 3 apples leftover. Ava has 3 apples, now.

Explanation:

Johnny's apples: 6-3 = 3

Ava's apples: 0+3 = 3

Answer 2

Answer: johnny will beat up ava and take his three apples back