Multiple choice

What approximate value will come at place of question mark (?) in the following question? 44.78 % of 56.04 % of 29.99 – 45.013 % of 9000 = ?

  1. -4060

  2. -4040

  3. -4080

  4. -5000

  5. -5030
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is an approximation problem: 44.78% of 56.04% of 29.99 – 45.013% of 9000. Approximating: 45% of 56% of 30 – 45% of 9000 = 0.45 × 0.56 × 30 – 0.45 × 9000 = 0.45 × 16.8 – 4050 = 7.56 – 4050 = -4042.4, which rounds to approximately -4040. The answer is negative and around -4040.

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