Find the approximate value which will come in place of question mark (?) in the following question?(29.989\% \text{ of } 4530.11 - 22.04\% \text{ of } 4599.99 = ? + 125.99)

Approximate: 30% of 4530 ≈ 1359, 22% of 4600 ≈ 1012. So 1359 - 1012 = 347. Then 347 = ? + 126, so ? = 347 - 126 = 221. More precisely: 30% of 4530 = 0.3×4530 = 1359. 22% of 4600 = 0.22×4600 = 1012. 1359 - 1012 = 347. 347 - 126 = 221. The answer matches option B (221). The approximate values work because the original percentages (29.989% and 22.04%) are very close to 30% and 22% respectively.