Penelope and Gwen shared some stamps. Penelope had 10% of what Gwen had at first. Penelope then gave Gwen
47 of what she had. How many more percent did Gwen have than Penelope in the end? Correct the answer to 1 decimal place.
| |
Penelope |
Gwen |
Comparing Penelope
and Gwen at first |
10x7 =
70 u |
1x7 =
7 u |
| Before |
7x10 =
70 u |
|
| Change |
- 4x10 =
- 40 u |
+ 4x10 =
+ 40 u |
| After |
3x10 =
30 u |
47 u |
10% =
10100 =
110The number of stamps that Penelope had at first is repeated. Make the number of stamps that Penelope had at first the same. LCM of 10 and 7 is 70.
Number of stamps that Gwen had in the end
= 7 u + 40 u
= 47 u
Number of more stamps that Gwen had than Penelope in the end
= 47 u - 30 u
= 17 u
Number of more stamps that Gwen had than Penelope in the end in percent
=
1730 x 100%
≈ 56.7%
Answer(s): 56.7%
