On Monday, there were 40 more adults than children at the theme park. On Tuesday, the number of adults increased by 55% and the number of children decreased by 85%. There were 368 people on Tuesday. How many children were there on Monday?
| |
Adults |
Children |
Total |
Comparing adults
and children at first |
40 more |
|
|
| Before |
20 u |
+ 40 |
20 u |
|
| Change |
+ 11 u |
+ 22 |
- 17 u |
|
| After |
31 u |
+ 62 |
3 u |
368 |
55% =
55100 =
1120 55% x 40 =
1120 x 40 = 22
40 + 22 = 62
85% =
85100 =
1720 Total number of people on Tuesday
= 31 u + 62 + 3 u
= 34 u + 62
34 u + 62 = 368
34 u = 368 - 62
34 u = 306
1 u = 306 ÷ 34 = 9
Number of children on Monday
= 20 u
= 20 x 9
= 180
Answer(s): 180
