We are given the expression:
0.6 × 0.06 × 6 × 60
Let's multiply the numbers step by step:
Thus, the value of 0.6 × 0.06 × 6 × 60 is 12.96.
Conclusion: The correct answer is (d) 12.96.
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?