A survey was conducted with some students.
29 of them chose golf as their favourite sport.
35 of the remaining students chose soccer.
12 of those left chose gymnastics and the last 63 chose tennis. How many more students chose soccer than golf?
Golf |
Soccer |
Gymnastics |
Tennis |
2x5 |
7x5 |
|
3x7 |
2x7 |
|
|
1x7 |
1x7 |
|
|
|
63 |
10 u |
21 u |
7 u |
7 u |
The number of students who chose soccer, gymnastics and tennis is repeated. Make the number of students who chose soccer, gymnastics and tennis the same. LCM of 7 and 5 is 35.
Number of students who chose gymnastics = 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Number of more students who chose soccer than golf
= 21 u - 10 u
= 11 u
= 11 x 9
= 99
Answer(s): 99