The word "impulsive" refers to acting quickly without thought or careful consideration.
The closest synonym among the given options is:
"Hasty" – which also means acting quickly, often without due thought or preparation.
Thus, the correct answer is (A) "hasty".
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?