Question

Four students are sitting in the first row.In the second row, 4 students sit behind each of those students, and so on.After the fourth row is filled,one student leaves from each row. In the fifth row,2 students sit behind each student in the fourth row. How many students are sitting in the fifth row?

Answer 1

The answer is 10. 2 in the first row, 4 in the second row, 6 in the third row, 8 in the fourth row, 10 in the 5th row. Hope this helps!