What percent of 40 is 8 ?

Rationale

20% of 40 is 8.

This calculation can be done by dividing 8 (the part) by 40 (the whole), then multiplying the result by 100 to convert it into a percentage. The result is 20%.

A (8%) YOUR ANSWER

This is incorrect because 8% of 40 is 3.2, not 8. To calculate the percentage, we need to divide the part (8) by the whole (40) and then multiply by 100.

B (2%) YOUR ANSWER

This is also incorrect because 2% of 40 is 0.8, not 8. The process of calculating the percentage is the same as above.

C (20%) CORRECT

This is the correct answer. 20% of 40 is 8. These values suit the formula for calculating a percentage, which is (Part/Whole)*100%.

D (0.05%) YOUR ANSWER

This option is incorrect because 0.05% of 40 is 0.02, not 8. The percentage calculation remains the same - divide the part by the whole and then multiply by 100.

Conclusion

The percentage of a number is calculated by dividing the part by the whole and then multiplying by 100. In the context of this problem, 20% of 40 equals 8, making option C the correct answer. Options A, B, and D provide incorrect percentages of 40 and are therefore incorrect.

What percent of 40 is 8 ?

20% of 40 is 8.

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