Emily received 756 files. She planned to give every boy 6 files each while every girl would be given 4 files each. The ratio of the number of girls to boys was 3 : 5. How many less girls than boys were there?
| |
Boys |
Girls |
Difference |
| Number |
5 u |
3 u |
2 u |
| Value |
6 |
4 |
|
| Total value |
30 u |
12 u |
|
Number of files that the boys received
= 5 u x 6
= 30 u
Number of files that the girls received
= 3 u x 4
= 12 u
Total number of files
= 30 u + 12 u
= 42 u
42 u = 756
1 u = 756 ÷ 42 = 18
Number of less girls than boys
= 5 u - 3 u
= 2 u
= 2 x 18
= 36
Answer(s): 36
