A survey was conducted with some students.
29 of them chose floorball as their favourite sport.
35 of the remaining students chose canoeing.
12 of those left chose swimming and the last 35 chose soccer. How many more students chose canoeing than floorball?
| Floorball |
Canoeing |
Swimming |
Soccer |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
35 |
| 10 u |
21 u |
7 u |
7 u |
The number of students who chose canoeing, swimming and soccer is repeated. Make the number of students who chose canoeing, swimming and soccer the same. LCM of 7 and 5 is 35.
Number of students who chose swimming = 7 u
7 u = 35
1 u = 35 ÷ 7 = 5
Number of more students who chose canoeing than floorball
= 21 u - 10 u
= 11 u
= 11 x 5
= 55
Answer(s): 55
