Dana and Zara shared some coins. Dana had 25% of what Zara had at first. Dana then gave Zara
47 of what she had. How many more percent did Zara have than Dana in the end? Correct the answer to 1 decimal place.
|
Dana |
Zara |
Comparing Dana and Zara at first |
4x7 = 28 u |
1x7 = 7 u |
Before |
7x4 = 28 u |
|
Change |
- 4x4 = - 16 u |
+ 4x4 = + 16 u |
After |
3x4 = 12 u |
23 u |
25% =
25100 =
14The number of coins that Dana had at first is repeated. Make the number of coins that Dana had at first the same. LCM of 4 and 7 is 28.
Number of coins that Zara had in the end
= 7 u + 16 u
= 23 u
Number of more coins that Zara had than Dana in the end
= 23 u - 12 u
= 11 u
Number of more coins that Zara had than Dana in the end in percent
=
1112 x 100%
≈ 91.7%
Answer(s): 91.7%