There was an equal number of boys and girls at the music room. After
58 of the boys and 49 girls left the music room, there were 19 more boys than girls at the music room. How many students were there at the music room at first?
| |
Boys |
Girls |
| Before |
8 u |
8 u |
| Change |
- 5 u |
- 49 |
| After |
3 u |
8 u - 49 |
Number of boys in the end
= 8 u - 5 u
= 3 u
If another 19 girls entered the music room, the number of boys and girls would be the same.
8 u - 49 + 19 = 3 u
8 u - 30 = 3 u
8 u - 3 u = 30
5 u = 30
1 u = 30 ÷ 5 = 6
Number of students in the music room at first
= 16 u
= 16 x 6
= 96
Answer(s): 96
