A survey was conducted with some pupils.
29 of them chose fencing as their favourite sport.
35 of the remaining pupils chose badminton.
12 of those left chose floorball and the last 56 chose swimming. How many more pupils chose badminton than fencing?
| Fencing |
Badminton |
Floorball |
Swimming |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
56 |
| 10 u |
21 u |
7 u |
7 u |
The number of pupils who chose badminton, floorball and swimming is repeated. Make the number of pupils who chose badminton, floorball and swimming the same. LCM of 7 and 5 is 35.
Number of pupils who chose floorball = 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Number of more pupils who chose badminton than fencing
= 21 u - 10 u
= 11 u
= 11 x 8
= 88
Answer(s): 88
