Multiple choice

What approximate value should come in place of the question mark (?) in the following equation? (You are not expected to calculate the exact value.) (1000 ÷ 3) ÷ (0.1 × 10)2 × (0.2 × 2)6 = ?% × (0.4)3

  1. 2560

  2. 2130

  3. 6420

  4. 1970

  5. 2840

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

(1000/3) / 1^2 * (0.4)^6 = ?/100 * (0.4)^3. Simplifying: (1000/3) * (0.4)^3 = ?/100. (1000/3) * 0.064 = ?/100. 21.333 = ?/100, so ? is approx 2133.