Jaslyn and Sarah shared some erasers. Jaslyn had 25% of what Sarah had at first. Jaslyn then gave Sarah
25 of what she had. How many less percent did Jaslyn have than Sarah in the end? Correct the answer to 1 decimal place.
| |
Jaslyn |
Sarah |
Comparing Jaslyn
and Sarah at first |
4x5 =
20 u |
1x5 =
5 u |
| Before |
5x4 =
20 u |
|
| Change |
- 2x4 =
- 8 u |
+ 2x4 =
+ 8 u |
| After |
3x4 =
12 u |
13 u |
25% =
25100 =
14The number of erasers that Jaslyn had at first is repeated. Make the number of erasers that Jaslyn had at first the same. LCM of 4 and 5 is 20.
Number of erasers that Sarah had in the end
= 5 u + 8 u
= 13 u
Number of less erasers that Jaslyn had than Sarah in the end
= 13 u - 12 u
= 1 u
Number of less erasers that Jaslyn had than Sarah in the end in percent
=
113 x 100%
≈ 7.7%
Answer(s): 7.7%
