Xuan and Lucy shared a box of buttons. Xuan had 60% of the total buttons. if Xuan gave 60 of her buttons to Lucy, both would have the same number of buttons. How many buttons did Xuan have?
| |
Xuan |
Lucy |
Total |
| Before |
60% |
40% |
100% |
| Change |
- 10% |
+ 10% |
|
| After |
50% |
50% |
100% |
Total number of buttons that Xuan and Lucy shared = 100%
If Xuan gave 60 buttons to Lucy, both would have the same number of buttons.
Number of buttons that each would have in the end
= 100% ÷ 2
= 50%
Number of buttons that Xuan gave to Lucy
= 60% - 50%
= 10%
10% → 60
1% → 60 ÷ 10 = 6
Number of buttons that Xuan had
= 60%
= 60 x 6
= 360
Answer(s): 360
