On Wednesday, there were 40 more adults than children at the arcade. On Thursday, the number of adults decreased by 65% and the number of children decreased by 85%. There were 124 people on Thursday. How many adults were there on Thursday?
| |
Adults |
Children |
Total |
Comparing adults
and children at first |
40 more |
|
|
| Before |
20 u |
+ 40 |
20 u |
|
| Change |
- 13 u |
- 26 |
- 17 u |
|
| After |
7 u |
+ 14 |
3 u |
124 |
65% =
65100 =
1320 65% x 40 =
1320 x 40 = 26
40 - 26 = 14
85% =
85100 =
1720 Total number of people on Thursday
= 7 u + 14 + 3 u
= 10 u + 14
10 u + 14 = 124
10 u = 124 - 14
10 u = 110
1 u = 110 ÷ 10 = 11
Number of adults on Thursday
= 7 u + 14
= 7 x 11 + 14
= 77 + 14
= 91
Answer(s): 91
