Flynn had 20% more balls than Brandon. Flynn gave 25% of his balls to Brandon. Brandon in return gave 30% of his balls to Flynn. In the end, Brandon had 380 less balls than Flynn. How many balls did Flynn have at first?
| |
Flynn |
Brandon |
| Before |
120% |
100% |
| Change 1 |
- 30% |
+ 30% |
| After 1 |
90% |
130% |
| Change 2 |
+ 39% |
- 39% |
| After 2 |
129% |
91% |
Number of balls that Flynn had at first in percent
= 100% + 20%
= 120%
Number of balls that Flynn gave to Brandon in percent
= 25% x 120%
=
25100 x 120%
= 30%
Number of balls that Brandon gave to Flynn in percent
= 30% x 130%
=
30100 x 130%
= 39%
Number of less balls that Brandon had than Flynn in the end
= 129% - 91%
= 38%
38% → 380
1% → 380 ÷ 38 = 10
Number of balls that Flynn had at first
= 120%
= 120 x 10
= 1200
Answer(s): 1200
