There were 304 students in a school. On the school anniversary,
34 of the boys and
45 of the girls came in pink jackets. The rest came in silver jackets. The number of girls who wore silver jackets was thrice of the boys who wore silver jackets. How many students were in pink jackets that day?
| Boys |
Girls |
Total |
| Pink jackets |
Silver jackets |
Pink jackets |
Silver jackets |
|
| 3 |
1 |
4x3 |
1x3 |
|
| |
1 |
|
3 |
|
| 3 u |
1 u |
12 u |
3 u |
19 u |
The number of girls who came in silver jackets is repeated. Make the number of girls who came in silver jackets the same. LCM of 1 and 3 is 3.
Total number of students
= 3 u + 1 u + 12 u + 3 u
= 19 u
19 u = 304
1 u = 304 ÷ 19 = 16
Number of students in pink jackets
= 3 u + 12 u
= 15 u
= 15 x 16
= 240
Answer(s): 240
