Multiple choice

What approximate value should come in place of question mark (?) in the following question?(331.8 \div 23.7 + (- ?)^{2} - 94 = (19)^{2})

  1. $-19$
  2. $-17$
  3. $-23$
  4. $21$
  5. $-29$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Calculate step by step: 331.8 ÷ 23.7 ≈ 14, and 19² = 361. The equation becomes 14 + ?² - 94 = 361. Solving: ?² = 361 + 94 - 14 = 441, so ? = ±21. Since option D is 21, this satisfies the equation.

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