Multiple choice

\text{What approximate value will come in place of question mark (?) in following Question?}\45\% \times 299.99 + \sqrt{399.99} \times \frac{4}{5} = ?

  1. 240

  2. 151

  3. 218

  4. 122

  5. 162
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

We need to calculate 45% × 299.99 + √399.99 × 4/5. Approximating: 45% × 300 = 135 (since 45% = 0.45, and 0.45 × 300 = 135). √400 = 20. 20 × 4/5 = 20 × 0.8 = 16. Total = 135 + 16 = 151. This matches option B. The question asks for approximate value, so using 300 instead of 299.99 and 400 instead of 399.99 is the correct approach.

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