On Wednesday, there were 40 more adults than children at the trampoline park. On Thursday, the number of adults increased by 65% and the number of children decreased by 85%. There were 282 people on Thursday. How many children were there on Wednesday?
| |
Adults |
Children |
Total |
Comparing adults
and children at first |
40 more |
|
|
| Before |
20 u |
+ 40 |
20 u |
|
| Change |
+ 13 u |
+ 26 |
- 17 u |
|
| After |
33 u |
+ 66 |
3 u |
282 |
65% =
65100 =
1320 65% x 40 =
1320 x 40 = 26
40 + 26 = 66
85% =
85100 =
1720 Total number of people on Thursday
= 33 u + 66 + 3 u
= 36 u + 66
36 u + 66 = 282
36 u = 282 - 66
36 u = 216
1 u = 216 ÷ 36 = 6
Number of children on Wednesday
= 20 u
= 20 x 6
= 120
Answer(s): 120
