Respuesta :

1) ∵∵∵∵∵∵

2) ∵∵∵∵∵∵

3) ∵∵∵∵∵∵

4) ∵∵∵∵∵∵

5) ∵∵∵∵∵∵

30 groups of dots: 6 in each row and 5 in each column. I selected 1/5 of the dots, which equals 6 groups of dots.