Multiple choice

$\text{What approximate value will come in place of question mark (?) in the questions given below?}$ $( (31.7)^{2} \times (2.3)^{2} + (8.7)^{2} \times (18.3)^{2} = ? )$

  1. 4444

  2. 33400

  3. 31400

  4. 40400

  5. 34500
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(31.7)² ≈ 1000, (2.3)² ≈ 5.4, so first term ≈ 5400. (8.7)² ≈ 76, (18.3)² ≈ 335, so second term ≈ 25400. Total ≈ 30800. Option C (31400) is closest approximation.

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