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