400
A.If a number ends in 0,then it is divisible by 5 B.Not possible; the conclusion of one statement is not the hypothesis of the other statement
A.If a number ends in 0, then it is divisible by 10
if a number is divisible by 10,then it is divisible by 5
B.If a number ends in 6,then it is divisible by 2
If a number ends in 4, then it is divisible by 2