| Medals achieved by 4 States in Year 2015 | ||||
| Country\(\rightarrow\) Medals\(\downarrow\) | A | B | C | D |
| Gold | 17 | 34 | 39 | 10 |
| Silver | 19 | 27 | 33 | 21 |
| Bronze | 31 | 4 | 18 | 47 |
The correct answer is (C);C
The correct answer is (C);2:1





Arun’s present age in years is 40% of Barun’s. In another few years, Arun’s age will be half of Barun’s. By what percentage will Barun’s age increase during this period?