On Friday, there were 40 more children than adults at the fair. On Saturday, the number of children decreased by 90% and the number of adults decreased by 70%. There were 44 people on Saturday. How many children were there on Saturday?
| |
Children |
Adults |
Total |
Comparing children
and adults at first |
40 more |
|
|
| Before |
10 u |
+ 40 |
10 u |
|
| Change |
- 9 u |
- 36 |
- 7 u |
|
| After |
1 u |
+ 4 |
3 u |
44 |
90% =
90100 =
910 90% x 40 =
910 x 40 = 36
40 - 36 = 4
70% =
70100 =
710 Total number of people on Saturday
= 1 u + 4 + 3 u
= 4 u + 4
4 u + 4 = 44
4 u = 44 - 4
4 u = 40
1 u = 40 ÷ 4 = 10
Number of children on Saturday
= 1 u + 4
= 1 x 10 + 4
= 10 + 4
= 14
Answer(s): 14
