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What percent of 40 is 6.40?

  1. 12%

  2. 16%

  3. 20%

  4. 10%

The correct answer is: 16%

To determine what percent of 40 is 6.40, you can set up the relationship as follows: 1. You want to find the percentage (let's call it P) such that P% of 40 equals 6.40. This can be expressed mathematically as: P/100 * 40 = 6.40 2. To find P, rearrange the equation: P = (6.40 * 100) / 40 3. Solve this calculation: P = 640 / 40 P = 16 Thus, 6.40 is 16% of 40. This shows why the correct answer is indeed linked to option B, as it accurately reflects this calculation. The other choices do not align with the arithmetic derived from the relationship between the numbers involved.