There will be a poetry reading in our class, including four hymns and 25 people. What formation should we stand in? There are four rows on that ladder.

4*5=20 can be like this: there are four hymns in front, with five people in the first, second and third rows and six people in the fourth row. 、

There are four hymns in the first row, six in the second row, seven in the third row and eight in the fourth row.

I hope it helps you. You can try to change it in my way. . .

I'm a pupil, too. I'm the monitor. The teacher often makes me queue up. It's the fifth grade now, and I have to queue many times a year! ! !