Julie's mother's weight to her weight is 3 : 2. If Julie puts on 40% more weight, by what percentage must her mother's weight be reduced by so that their total weight remains unchanged as before? Correct the answer to 1 decimal place.
|
Julie's mother |
Julie |
Total |
Before |
3 u |
2 u |
5 u |
Change |
- 0.8 u |
+ 0.8 u |
|
After |
2.2 u |
2.8 u |
5 u |
Amount of weight that Julie puts on
= 40% x 2 u
=
40100 x 2 u
= 0.8 u
The total weight remains unchanged.
Percentage of weight that Julie's mother must be reduced by
=
0.83 x 100%
≈ 26.7% (Correct to 1 decimal place.)
Answer(s): 26.7%