Multiple choice

What approximate value will come at the place of question mark (?) in the following question?( (15.33)^2 - (12.94)^2 + (22.06)^2 - 35.65 =?)

  1. 511

  2. 504

  3. 631

  4. 585

  5. 705

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Approximating: (15.33)² ≈ 235, (12.94)² ≈ 167, (22.06)² ≈ 487. So: 235 - 167 + 487 - 35.65 = 68 + 487 - 35.65 = 555 - 35.65 = 519.35. The closest answer is 504.