Abi and Vanessa shared a box of buttons. Abi had 60% of the total buttons. if Abi gave 80 of her buttons to Vanessa, both would have the same number of buttons. How many buttons did Vanessa have?
| |
Abi |
Vanessa |
Total |
| Before |
60% |
40% |
100% |
| Change |
- 10% |
+ 10% |
|
| After |
50% |
50% |
100% |
Total number of buttons that Abi and Vanessa shared = 100%
If Abi gave 80 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 Abi gave to Vanessa
= 60% - 50%
= 10%
10% → 80
1% → 80 ÷ 10 = 8
Number of buttons that Vanessa had
= 40%
= 40 x 8
= 320
Answer(s): 320
