Relationship between Division and Multiplication

Q. Which is inverse of multiplication ?

1. Subtraction
2. Addition
3. Divison
4. None of these

Q. Find the missing number.
$36÷?=9?\times 9=36$

1. 4
2. 9
3. 5
4. 6

Q. Given that $9760÷16=610,$ which of the followings is/are correct?

1. $9760=16\times 610$
2. $19520=32\times 620$
3. $9760÷610=16$
4. $9760\times 610=16$