Question

One serving of wheat square cereal has 7 grams of fiber, which is 28% of the recommended daily amount. What is the total recommended daily amount of fiber? Give your answer in grams.

Answer 1

let's say that is x, thus x is the 100% of the recommended daily amount, and we know the 7 grams is 28% of that.

if 7 is the 28%, what is the 100% anyway?

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Answer 2

25 grams

Explanation:

Let x be the recommended daily amount ( in grams ) of the fiber,

So, 28% of x =
`(28)/(100)x` = 0.28x

According to the question,

7 gram is 28% of the recommended daily amount of fiber,

That is, 0.28x = 7

`\implies x=(7)/(0.28)=25`

Hence, 25 grams is the total recommended daily amount of fiber.