Lynn and Emma shared some coins. Lynn had 40% of what Emma had at first. Lynn then gave Emma
57 of what she had. How many less percent did Lynn have than Emma in the end? Correct the answer to 1 decimal place.
| |
Lynn |
Emma |
Comparing Lynn
and Emma at first |
5x7 =
35 u |
2x7 =
14 u |
| Before |
7x5 =
35 u |
|
| Change |
- 5x5 =
- 25 u |
+ 5x5 =
+ 25 u |
| After |
2x5 =
10 u |
39 u |
40% =
40100 =
25The number of coins that Lynn had at first is repeated. Make the number of coins that Lynn had at first the same. LCM of 5 and 7 is 35.
Number of coins that Emma had in the end
= 14 u + 25 u
= 39 u
Number of less coins that Lynn had than Emma in the end
= 39 u - 10 u
= 29 u
Number of less coins that Lynn had than Emma in the end in percent
=
2939 x 100%
≈ 74.4%
Answer(s): 74.4%
