A survey was conducted with some pupils.
29 of them chose canoeing as their favourite sport.
35 of the remaining pupils chose badminton.
12 of those left chose golf and the last 49 chose squash. How many more pupils chose badminton than canoeing?
| Canoeing |
Badminton |
Golf |
Squash |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
49 |
| 10 u |
21 u |
7 u |
7 u |
The number of pupils who chose badminton, golf and squash is repeated. Make the number of pupils who chose badminton, golf and squash the same. LCM of 7 and 5 is 35.
Number of pupils who chose golf = 7 u
7 u = 49
1 u = 49 ÷ 7 = 7
Number of more pupils who chose badminton than canoeing
= 21 u - 10 u
= 11 u
= 11 x 7
= 77
Answer(s): 77
