Emma and Tiffany shared some cards. Emma had 70% of what Tiffany had at first. Emma then gave Tiffany
25 of what she had. How many more percent did Tiffany have than Emma in the end? Correct the answer to 1 decimal place.
| |
Emma |
Tiffany |
Comparing Emma
and Tiffany at first |
10x1 =
10 u |
7x1 =
7 u |
| Before |
5x2 =
10 u |
|
| Change |
- 2x2 =
- 4 u |
+ 2x2 =
+ 4 u |
| After |
3x2 =
6 u |
11 u |
70% =
70100 =
710The number of cards that Emma had at first is repeated. Make the number of cards that Emma had at first the same. LCM of 10 and 5 is 10.
Number of cards that Tiffany had in the end
= 7 u + 4 u
= 11 u
Number of more cards that Tiffany had than Emma in the end
= 11 u - 6 u
= 5 u
Number of more cards that Tiffany had than Emma in the end in percent
=
56 x 100%
≈ 83.3%
Answer(s): 83.3%
