Risa and Anna shared some coins. Risa had 75% of what Anna had at first. Risa then gave Anna
47 of what she had. How many more percent did Anna have than Risa in the end? Correct the answer to 1 decimal place.
|
Risa |
Anna |
Comparing Risa and Anna 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 coins that Risa had at first is repeated. Make the number of coins that Risa had at first the same. LCM of 4 and 7 is 28.
Number of coins that Anna had in the end
= 21 u + 16 u
= 37 u
Number of more coins that Anna had than Risa in the end
= 37 u - 12 u
= 25 u
Number of more coins that Anna had than Risa in the end in percent
=
2512 x 100%
≈ 208.3%
Answer(s): 208.3%