Pamela and Cathy shared some stickers. Pamela had 30% of what Cathy had at first. Pamela then gave Cathy
25 of what she had. How many more percent did Cathy have than Pamela in the end? Correct the answer to 1 decimal place.
| |
Pamela |
Cathy |
Comparing Pamela
and Cathy at first |
10x1 =
10 u |
3x1 =
3 u |
| Before |
5x2 =
10 u |
|
| Change |
- 2x2 =
- 4 u |
+ 2x2 =
+ 4 u |
| After |
3x2 =
6 u |
7 u |
30% =
30100 =
310The number of stickers that Pamela had at first is repeated. Make the number of stickers that Pamela had at first the same. LCM of 10 and 5 is 10.
Number of stickers that Cathy had in the end
= 3 u + 4 u
= 7 u
Number of more stickers that Cathy had than Pamela in the end
= 7 u - 6 u
= 1 u
Number of more stickers that Cathy had than Pamela in the end in percent
=
16 x 100%
≈ 16.7%
Answer(s): 16.7%
