Linda and Emma shared some buttons. Linda had 30% of what Emma had at first. Linda then gave Emma
38 of what she had. How many less percent did Linda have than Emma in the end? Correct the answer to 1 decimal place.
| |
Linda |
Emma |
Comparing Linda
and Emma at first |
10x4 =
40 u |
3x4 =
12 u |
| Before |
8x5 =
40 u |
|
| Change |
- 3x5 =
- 15 u |
+ 3x5 =
+ 15 u |
| After |
5x5 =
25 u |
27 u |
30% =
30100 =
310The number of buttons that Linda had at first is repeated. Make the number of buttons that Linda had at first the same. LCM of 10 and 8 is 40.
Number of buttons that Emma had in the end
= 12 u + 15 u
= 27 u
Number of less buttons that Linda had than Emma in the end
= 27 u - 25 u
= 2 u
Number of less buttons that Linda had than Emma in the end in percent
=
227 x 100%
≈ 7.4%
Answer(s): 7.4%
