Gwen and Jean shared some erasers. Gwen had 70% of what Jean had at first. Gwen then gave Jean
25 of what she had. How many more percent did Jean have than Gwen in the end? Correct the answer to 1 decimal place.
| |
Gwen |
Jean |
Comparing Gwen
and Jean 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 erasers that Gwen had at first is repeated. Make the number of erasers that Gwen had at first the same. LCM of 10 and 5 is 10.
Number of erasers that Jean had in the end
= 7 u + 4 u
= 11 u
Number of more erasers that Jean had than Gwen in the end
= 11 u - 6 u
= 5 u
Number of more erasers that Jean had than Gwen in the end in percent
=
56 x 100%
≈ 83.3%
Answer(s): 83.3%
