Which of these true conditional statements has a false converse ?

Answer:
Option B has a false converse.
Step-by-step explanation:
When we switch the hypothesis and conclusion of a conditional statement, then it is called the converse of that statement.
Here options A and C have a true converse.
If n is even then it is divisible by 2.
If 2x=4, then x=2.
But if x>10, then x>5 does not have a true converse.
We can write the converse as : if x>5 , then x>10 . This cannot be necessarily true as you can have x=6 which is not >10.
Therefore, option B has a false converse.