There was an equal number of girls and boys at the tuck shop. After
29 of the girls and 48 boys left the tuck shop, there were 24 more girls than boys at the tuck shop. How many children were there at the tuck shop at first?
| |
Girls |
Boys |
| Before |
9 u |
9 u |
| Change |
- 2 u |
- 48 |
| After |
7 u |
9 u - 48 |
Number of girls in the end
= 9 u - 2 u
= 7 u
If another 24 boys entered the tuck shop, the number of girls and boys would be the same.
9 u - 48 + 24 = 7 u
9 u - 24 = 7 u
9 u - 7 u = 24
2 u = 24
1 u = 24 ÷ 2 = 12
Number of children in the tuck shop at first
= 18 u
= 18 x 12
= 216
Answer(s): 216
