On Saturday, there were 40 more children than adults at the trampoline park. On Sunday, the number of children increased by 55% and the number of adults increased by 85%. There were 266 people on Sunday. How many children were there on Saturday?
| |
Children |
Adults |
Total |
Comparing children
and adults at first |
40 more |
|
|
| Before |
20 u |
+ 40 |
20 u |
|
| Change |
+ 11 u |
+ 22 |
+ 17 u |
|
| After |
31 u |
+ 62 |
37 u |
266 |
55% =
55100 =
1120 55% x 40 =
1120 x 40 = 22
40 + 22 = 62
85% =
85100 =
1720 Total number of people on Sunday
= 31 u + 62 + 37 u
= 68 u + 62
68 u + 62 = 266
68 u = 266 - 62
68 u = 204
1 u = 204 ÷ 68 = 3
Number of children on Saturday
= 20 u + 40
= 20 x 3 + 40
= 60 + 40
= 100
Answer(s): 100
