
Observing the pattern, the missing part must align symmetrically with the given portion.
The black-and-white areas follow a structured arrangement with diagonal symmetry.
Option (B) maintains the consistent division of the section and fits perfectly.
Conclusion: Thus, the correct answer is Option B




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?