A survey was conducted with some pupils.
29 of them chose soccer as their favourite sport.
35 of the remaining pupils chose gymnastics.
12 of those left chose floorball and the last 28 chose rugby. How many more pupils chose gymnastics than soccer?
| Soccer |
Gymnastics |
Floorball |
Rugby |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
28 |
| 10 u |
21 u |
7 u |
7 u |
The number of pupils who chose gymnastics, floorball and rugby is repeated. Make the number of pupils who chose gymnastics, floorball and rugby the same. LCM of 7 and 5 is 35.
Number of pupils who chose floorball = 7 u
7 u = 28
1 u = 28 ÷ 7 = 4
Number of more pupils who chose gymnastics than soccer
= 21 u - 10 u
= 11 u
= 11 x 4
= 44
Answer(s): 44
