A survey was conducted with some pupils.
29 of them chose squash as their favourite sport.
35 of the remaining pupils chose volleyball.
12 of those left chose tennis and the last 42 chose badminton. How many more pupils chose volleyball than squash?
| Squash |
Volleyball |
Tennis |
Badminton |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
42 |
| 10 u |
21 u |
7 u |
7 u |
The number of pupils who chose volleyball, tennis and badminton is repeated. Make the number of pupils who chose volleyball, tennis and badminton the same. LCM of 7 and 5 is 35.
Number of pupils who chose tennis = 7 u
7 u = 42
1 u = 42 ÷ 7 = 6
Number of more pupils who chose volleyball than squash
= 21 u - 10 u
= 11 u
= 11 x 6
= 66
Answer(s): 66
