It is clear from figure, that each child has one – one ribbon in their both hands. Thus, each child has two ribbons. If numbers of children are 6, than number of ribbons will be double of it, i.e. 6x × 2 = 12 Similarly, number of ribbons for 6, 7, 8, 9, 10 and 11 students are shown in following table
∴ Table given in question is as below
Number of students |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
Number of ribbons |
2 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |