Diana and Shiyun shared some stamps. Diana had 75% of what Shiyun had at first. Diana then gave Shiyun
37 of what she had. How many more percent did Shiyun have than Diana in the end? Correct the answer to 1 decimal place.
| |
Diana |
Shiyun |
Comparing Diana
and Shiyun at first |
4x7 =
28 u |
3x7 =
21 u |
| Before |
7x4 =
28 u |
|
| Change |
- 3x4 =
- 12 u |
+ 3x4 =
+ 12 u |
| After |
4x4 =
16 u |
33 u |
75% =
75100 =
34The number of stamps that Diana had at first is repeated. Make the number of stamps that Diana had at first the same. LCM of 4 and 7 is 28.
Number of stamps that Shiyun had in the end
= 21 u + 12 u
= 33 u
Number of more stamps that Shiyun had than Diana in the end
= 33 u - 16 u
= 17 u
Number of more stamps that Shiyun had than Diana in the end in percent
=
1716 x 100%
≈ 106.3%
Answer(s): 106.3%
