All film stars are playback singers. All film directors are film stars. Choose the conclusion that can be drawn from the following statements:
I. All film directors are playback singers.
II. Some film stars are film directors.





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?