Question

Which argument is valid?

(Points : 1)
If a number is divisible by 12, it is divisible by 6.
If a number is divisible by 6, it is divisible by 3.
If a number is divisible by 12, it is divisible by 3.

If a polygon is rhombus, it has four congruent sides.
If a polygon is a square, then it has four congruent angles.
If a polygon is a rhombus, then it is a square.

If it is a cat, then it has claws.
If it has fur, then it is an animal.
If it is a cat, then it has claws and fur.

If a number is divisible by 9, then it is divisible by 3.
If a number is divisible by 6, then it is divisible by 3.
If a number is divisible by 6, then it is divisible by 9

Answer 1

1 - True. If a number is divisible by 12 it's divisible by 6 and thus by 3

2 - False. A rhombus needn't have square angles

3 - False. the second proposition is unrelated to the first one, and doesn't allow us to deduce that cats have fur.

4 - False - We cannot link the first and second proposition in any way to make the third