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