Multiple choice

\text{In the following question what approximate value should come at place of question mark (?)} \ \text{172.9\% of 187.55 - ?\% of 259.92 = 144\% of 149.99}

  1. 62.55

  2. 41.66

  3. 31.52

  4. 28.58

  5. 19.26
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Approximate: 172.9% ≈ 173%, 187.55 ≈ 188, 259.92 ≈ 260, 144% ≈ 144%, 149.99 ≈ 150. So: 1.73 × 188 - ?% × 260 = 1.44 × 150. Calculate: 1.73 × 188 ≈ 325.24. 1.44 × 150 = 216. So: 325.24 - ?% × 260 = 216. Therefore: ?% × 260 = 325.24 - 216 = 109.24. So: ?% = 109.24/260 ≈ 0.42 = 42%. Checking options: 41.66% is closest. Let me verify more precisely: 1.729 × 187.55 = 324.2. 1.44 × 149.99 = 215.99. So: 324.2 - ?% × 259.92 = 215.99. ?% × 259.92 = 108.21. ?% = 108.21/259.92 ≈ 0.4165 = 41.65%. This matches option B.

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