On Tuesday, there were 10 more children than adults at the night market. On Wednesday, the number of children decreased by 60% and the number of adults decreased by 80%. There were 10 people on Wednesday. How many children were there on Wednesday?
| |
Children |
Adults |
Total |
Comparing children
and adults at first |
10 more |
|
|
| Before |
5 u |
+ 10 |
5 u |
|
| Change |
- 3 u |
- 6 |
- 4 u |
|
| After |
2 u |
+ 4 |
1 u |
10 |
60% =
60100 =
35 60% x 10 =
35 x 10 = 6
10 - 6 = 4
80% =
80100 =
45 Total number of people on Wednesday
= 2 u + 4 + 1 u
= 3 u + 4
3 u + 4 = 10
3 u = 10 - 4
3 u = 6
1 u = 6 ÷ 3 = 2
Number of children on Wednesday
= 2 u + 4
= 2 x 2 + 4
= 4 + 4
= 8
Answer(s): 8
