Multiple choice

What approximate value should come in place of question mark (?) in the following questions?(16.217 \times 23.88 + 223 = 18.98 \times (?))

  1. 20

  2. 40

  3. 32

  4. 42

  5. 72
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Approximate: 16.217 ≈ 16, 23.88 ≈ 24. So 16 × 24 = 384. Then 384 + 223 = 607. On the right side: 18.98 × ? ≈ 607. Since 18.98 ≈ 19, we have 19 × ? ≈ 607, so ? ≈ 607 ÷ 19 ≈ 32. Option C (32) is the closest approximation.

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