On Tuesday, there were 35 more adults than children at the laser tag park. On Wednesday, the number of adults increased by 80% and the number of children increased by 60%. There were 165 people on Wednesday. How many adults were there on Tuesday?
| |
Adults |
Children |
Total |
Comparing adults
and children at first |
35 more |
|
|
| Before |
5 u |
+ 35 |
5 u |
|
| Change |
+ 4 u |
+ 28 |
+ 3 u |
|
| After |
9 u |
+ 63 |
8 u |
165 |
80% =
80100 =
45 80% x 35 =
45 x 35 = 28
35 + 28 = 63
60% =
60100 =
35 Total number of people on Wednesday
= 9 u + 63 + 8 u
= 17 u + 63
17 u + 63 = 165
17 u = 165 - 63
17 u = 102
1 u = 102 ÷ 17 = 6
Number of adults on Tuesday
= 5 u + 35
= 5 x 6 + 35
= 30 + 35
= 65
Answer(s): 65
