Multiple choice

What approximate value should come in place of question mark (?) in the following questions?(570.80 \times 9.09 \times ? = 230855)

  1. 45

  2. 50

  3. 40

  4. 55

  5. 60
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A Correct answer
Explanation

Round 570.80 to 571 and 9.09 to 9 for estimation: 571 × 9 = 5139. Then 230855 ÷ 5139 ≈ 44.9, which rounds to 45. This approximation method works well since we're asked for an approximate value.

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