A survey was conducted with some pupils.
29 of them chose golf as their favourite sport.
35 of the remaining pupils chose jogging.
12 of those left chose volleyball and the last 14 chose squash. How many more pupils chose jogging than golf?
| Golf |
Jogging |
Volleyball |
Squash |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
14 |
| 10 u |
21 u |
7 u |
7 u |
The number of pupils who chose jogging, volleyball and squash is repeated. Make the number of pupils who chose jogging, volleyball and squash the same. LCM of 7 and 5 is 35.
Number of pupils who chose volleyball = 7 u
7 u = 14
1 u = 14 ÷ 7 = 2
Number of more pupils who chose jogging than golf
= 21 u - 10 u
= 11 u
= 11 x 2
= 22
Answer(s): 22
