A survey was conducted with some students.
29 of them chose floorball as their favourite sport.
35 of the remaining students chose basketball.
12 of those left chose golf and the last 42 chose fencing. How many more students chose basketball than floorball?
| Floorball |
Basketball |
Golf |
Fencing |
| 2x5 |
7x5 |
| |
3x7 |
2x7 |
| |
|
1x7 |
1x7 |
| |
|
|
42 |
| 10 u |
21 u |
7 u |
7 u |
The number of students who chose basketball, golf and fencing is repeated. Make the number of students who chose basketball, golf and fencing the same. LCM of 7 and 5 is 35.
Number of students who chose golf = 7 u
7 u = 42
1 u = 42 ÷ 7 = 6
Number of more students who chose basketball than floorball
= 21 u - 10 u
= 11 u
= 11 x 6
= 66
Answer(s): 66
