In a class, the number of boys who can swim is one more than the number of girls who can swim. The number of girls who cannot swim is one more than the number of boys that cannot swim. The difference between number of boys who can swim and number of girls who cannot swim is two. Then which of the following is true?
1
The number of girls in that class is 2 less than the number of boys
2
The number of boys in that class is one more than the number of girls
3
The number of boys and girls in that class is each equal to 2
4
The difference between the number of girls who can swim and the number of boys who can't swim is 2