There was an equal number of boys and girls in the school hall. When 5% of the girls left the school hall, there were 8 more boys than girls remaining in the school hall. How many children remained in the school hall?
|
|
Boys
|
Girls
|
|
Before
|
20 u
|
20 u
|
|
Change
|
|
- 1 u
|
|
After
|
20 u
|
19 u
|
5% =
5100 =
120Number of girls in the end
= 20 u - 1 u
= 19 u
Number of more boys than girls remaining in the school hall
= 20 u - 19 u
= 1 u
1 u = 8
Total number of students remaining in the school hall
= 20 u + 19 u
= 39 u
= 39 x 8
= 312
Answer(s): 312
