Fanny and Risa shared some pens. Fanny had 25% of what Risa had at first. Fanny then gave Risa
25 of what she had. How many more percent did Risa have than Fanny in the end? Correct the answer to 1 decimal place.
| |
Fanny |
Risa |
Comparing Fanny
and Risa at first |
4x5 =
20 u |
1x5 =
5 u |
| Before |
5x4 =
20 u |
|
| Change |
- 2x4 =
- 8 u |
+ 2x4 =
+ 8 u |
| After |
3x4 =
12 u |
13 u |
25% =
25100 =
14The number of pens that Fanny had at first is repeated. Make the number of pens that Fanny had at first the same. LCM of 4 and 5 is 20.
Number of pens that Risa had in the end
= 5 u + 8 u
= 13 u
Number of more pens that Risa had than Fanny in the end
= 13 u - 12 u
= 1 u
Number of more pens that Risa had than Fanny in the end in percent
=
112 x 100%
≈ 8.3%
Answer(s): 8.3%
