Multiple choice

What approximate value should come in place of question mark (?) in the following questions? (Note: You are not expected to calculate the exact value)130 of 59.9% + 1020 of 30.01 % - 103.92 = ?

  1. 450

  2. 320

  3. 210

  4. 280

  5. 350
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D Correct answer
Explanation

Estimate 59.9% as 60% and 30.01% as 30%. Then 130 × 0.6 + 1020 × 0.3 - 103.92 is approximately 78 + 306 - 104 = 280.

AI explanation

Approximating the values gives the expression 130 of 60% + 1020 of 30% - 104, which simplifies to 130 multiplied by 0.6 plus 1020 multiplied by 0.3 minus 104. Multiplying the terms yields 78 + 306 - 104, and subtracting gives 384 - 104. The final result is 280.

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