A survey was conducted with some students.
29 of them chose squash as their favourite sport.
35 of the remaining students chose swimming.
12 of those left chose floorball and the last 63 chose gymnastics. How many more students chose swimming than squash?
| Squash |
Swimming |
Floorball |
Gymnastics |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
63 |
| 10 u |
21 u |
7 u |
7 u |
The number of students who chose swimming, floorball and gymnastics is repeated. Make the number of students who chose swimming, floorball and gymnastics the same. LCM of 7 and 5 is 35.
Number of students who chose floorball = 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Number of more students who chose swimming than squash
= 21 u - 10 u
= 11 u
= 11 x 9
= 99
Answer(s): 99
