A survey was conducted with some students.
29 of them chose canoeing as their favourite sport.
35 of the remaining students chose badminton.
12 of those left chose jogging and the last 70 chose tennis. How many more students chose badminton than canoeing?
| Canoeing |
Badminton |
Jogging |
Tennis |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
70 |
| 10 u |
21 u |
7 u |
7 u |
The number of students who chose badminton, jogging and tennis is repeated. Make the number of students who chose badminton, jogging and tennis the same. LCM of 7 and 5 is 35.
Number of students who chose jogging = 7 u
7 u = 70
1 u = 70 ÷ 7 = 10
Number of more students who chose badminton than canoeing
= 21 u - 10 u
= 11 u
= 11 x 10
= 110
Answer(s): 110
