There were 936 students in a school. On the school anniversary,
34 of the girls and
45 of the boys came in silver jackets. The rest came in purple jackets. The number of boys who wore purple jackets was four times of the girls who wore purple jackets. How many students were in silver jackets that day?
| Girls |
Boys |
Total |
| Silver jackets |
Purple jackets |
Silver jackets |
Purple jackets |
|
| 3 |
1 |
4x4 |
1x4 |
|
| |
1 |
|
4 |
|
| 3 u |
1 u |
16 u |
4 u |
24 u |
The number of boys who came in purple jackets is repeated. Make the number of boys who came in purple jackets the same. LCM of 1 and 4 is 4.
Total number of students
= 3 u + 1 u + 16 u + 4 u
= 24 u
24 u = 936
1 u = 936 ÷ 24 = 39
Number of students in silver jackets
= 3 u + 16 u
= 19 u
= 19 x 39
= 741
Answer(s): 741
