Risa and Vanessa shared a box of buttons. Risa had 66% of the total buttons. if Risa gave 160 of her buttons to Vanessa, both would have the same number of buttons. How many buttons did Vanessa have?
| |
Risa |
Vanessa |
Total |
| Before |
66% |
34% |
100% |
| Change |
- 16% |
+ 16% |
|
| After |
50% |
50% |
100% |
Total number of buttons that Risa and Vanessa shared = 100%
If Risa gave 160 buttons to Vanessa, 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 Risa gave to Vanessa
= 66% - 50%
= 16%
16% → 160
1% → 160 ÷ 16 = 10
Number of buttons that Vanessa had
= 34%
= 34 x 10
= 340
Answer(s): 340
