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Multiple choice

What approximate value will come in place of question mark (?) in following Questions?(80\% \text{ of } (1.5 \times 4 + ?) = 24)

  1. $24$
  2. $36$
  3. $18$
  4. $22$
  5. $12$
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A Correct answer
Explanation

80% of (1.5 × 4 + ?) = 24. First, 1.5 × 4 = 6. So 80% of (6 + ?) = 24. Dividing both sides: 6 + ? = 24/0.8 = 30. Therefore ? = 30 - 6 = 24.

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