There were 330 students in a school. On the school anniversary,
56 of the boys and
23 of the girls came in gold scarves. The rest came in red scarves. The number of girls who wore red scarves was thrice of the boys who wore red scarves. How many students were in gold scarves that day?
| Boys |
Girls |
Total |
| Gold scarves |
Red scarves |
Gold scarves |
Red scarves |
|
| 5 |
1 |
2x3 |
1x3 |
|
| |
1 |
|
3 |
|
| 5 u |
1 u |
6 u |
3 u |
15 u |
The number of girls who came in red scarves is repeated. Make the number of girls who came in red scarves the same. LCM of 1 and 3 is 3.
Total number of students
= 5 u + 1 u + 6 u + 3 u
= 15 u
15 u = 330
1 u = 330 ÷ 15 = 22
Number of students in gold scarves
= 5 u + 6 u
= 11 u
= 11 x 22
= 242
Answer(s): 242
