Lynn and Diana shared some erasers. Lynn had 75% of what Diana had at first. Lynn then gave Diana
47 of what she had. How many less percent did Lynn have than Diana in the end? Correct the answer to 1 decimal place.
| |
Lynn |
Diana |
Comparing Lynn
and Diana at first |
4x7 =
28 u |
3x7 =
21 u |
| Before |
7x4 =
28 u |
|
| Change |
- 4x4 =
- 16 u |
+ 4x4 =
+ 16 u |
| After |
3x4 =
12 u |
37 u |
75% =
75100 =
34The number of erasers that Lynn had at first is repeated. Make the number of erasers that Lynn had at first the same. LCM of 4 and 7 is 28.
Number of erasers that Diana had in the end
= 21 u + 16 u
= 37 u
Number of less erasers that Lynn had than Diana in the end
= 37 u - 12 u
= 25 u
Number of less erasers that Lynn had than Diana in the end in percent
=
2537 x 100%
≈ 67.6%
Answer(s): 67.6%
