In the first pair, “BART” is transformed into “ABTR” by:
Applying the same transformation to "CART", we swap:
This results in ACTR.
The correct answer is (d) ACTR.
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?