All of the following are ways to write 25 percent of N except A. 0.25 N B. 25N/100 C. 1/4 N D. 25 N The answer is D but I want to know why

Question

Deangelo

Mathematics

1 November, 06:52

All of the following are ways to write 25 percent of N except A. 0.25 N B. 25N/100 C. 1/4 N D. 25 N The answer is D but I want to know why

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Answers (2)

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Teagan Horne · Answer 1

It is D because 25 percent is a fraction or a decimal: 25/100.

Therefore A is correct because 25/100 in decimals is 0.25,

B is correct because 25/100 is 25 percent,

1/4 is the same as 25/100 as a fraction

And finally, D is wrong because 25 is not in fraction/decimal/percentage form

Maryjane Anthony · Answer 2

In this case, N is just a variable. Lets make N 100.

A. 0.25*100=25 25 is 25% of 100 so this checks out.

B. 25 (100) / 100=25 25 is 25% of 100 so this checks out too.

C. 1/4 = 0.25 (100) = 25 25 is 25% of 100 so this checks out as well.

D. 25 (100) = 2500 2500 is greater than 100 so its more than 100% of 100.

As to why that is, its because you're multiplying the variable by 25, but that wont get you 25% of the variable.