The relationship between “West” and “North-West” is that North-West is formed by combining “North” and “West”.
Similarly, we need to find the direction that combines with “South” to form a direction analogous to “South-West”.
“South-West” is formed by combining “South” and “West”, so the correct analogous direction to complete the pair is “West”.
The correct answer is (c) West.
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?