Xuan and Lynn shared some coins. Xuan had 70% of what Lynn had at first. Xuan then gave Lynn
38 of what she had. How many less percent did Xuan have than Lynn in the end? Correct the answer to 1 decimal place.
| |
Xuan |
Lynn |
Comparing Xuan
and Lynn at first |
10x4 =
40 u |
7x4 =
28 u |
| Before |
8x5 =
40 u |
|
| Change |
- 3x5 =
- 15 u |
+ 3x5 =
+ 15 u |
| After |
5x5 =
25 u |
43 u |
70% =
70100 =
710The number of coins that Xuan had at first is repeated. Make the number of coins that Xuan had at first the same. LCM of 10 and 8 is 40.
Number of coins that Lynn had in the end
= 28 u + 15 u
= 43 u
Number of less coins that Xuan had than Lynn in the end
= 43 u - 25 u
= 18 u
Number of less coins that Xuan had than Lynn in the end in percent
=
1843 x 100%
≈ 41.9%
Answer(s): 41.9%
