The correct option is A 4
To find out how many chocolates Henry has left with him, we need to divide 16 by 6.
If Henry gives 6 chocolates to one of his friends, he has 16−6=10 chocolates left with him.
If he gives 6 out of the 10 chocolates that he has, he is left with 10−6=4 chocolates.
He cannot give it to another friend as he is 2 chocolates short.
∴ After distributing 6+6=12 chocolates in total to two of his friends, Henry is left with 4 chocolates.
In other words, the remainder when 16 is divided by 6 is 4.