Question : What is the smallest value that must be added to 709, so that the resultant is a perfect square?

Option 1: 8

Option 2: 12

Option 3: 20

Option 4: 32

Question : What the least value should be added to 2505 so that it becomes a perfect square?

Option 1: 5

Option 2: 20

Option 3: 70

Option 4: 96

Question : The term that should be added to ($4x^2+8x$) so that the resulting expression be a perfect square, is:

Option 1: $2$

Option 2: $4$

Option 3: $2x$

Option 4: $1$

Question : For what value of N, 270N will be a perfect square, where 270N is a 4-digit number?

Option 1: 1

Option 2: 6

Option 3: 4

Option 4: 9

Question : What is the smallest perfect square number that is completely divisible by 4, 6, 9, 12, and 15?

Option 1: 784

Option 2: 900

Option 3: 961

Option 4: 841