On Tuesday, there were 40 more adults than children at the bowling alley. On Wednesday, the number of adults increased by 80% and the number of children decreased by 60%. There were 182 people on Wednesday. How many children were there on Tuesday?
| |
Adults |
Children |
Total |
Comparing adults
and children at first |
40 more |
|
|
| Before |
5 u |
+ 40 |
5 u |
|
| Change |
+ 4 u |
+ 32 |
- 3 u |
|
| After |
9 u |
+ 72 |
2 u |
182 |
80% =
80100 =
45 80% x 40 =
45 x 40 = 32
40 + 32 = 72
60% =
60100 =
35 Total number of people on Wednesday
= 9 u + 72 + 2 u
= 11 u + 72
11 u + 72 = 182
11 u = 182 - 72
11 u = 110
1 u = 110 ÷ 11 = 10
Number of children on Tuesday
= 5 u
= 5 x 10
= 50
Answer(s): 50
