Question

One serving of wheat square cereal has seven grams of fiber, which is $28$% of the recommended daily amount. What is the total recommended daily amount of fiber?

Short answer

If the amount of fiber in One serving of wheat square cereal is $7$grams and $28$% of the recommended daily amount is $7$Grams then the total amount of daily recommended fiber will be$25$grams.

Step-by-step solution

Step 1. Given information 

The amount of fiber in One serving of wheat square cereal is$7$grams.

$28$% of the recommended daily amount is$7$ Grams.

Step 2. The total recommended daily amount of fiber

Consider the total recommended daily amount of fiber is $a$

$7$gram is $28$% of the total recommended daily amount of fiber

$$\begin{gathered} 7=0.28\times a \\ \frac{7}{0.28}=a \\ a=25 \end{gathered}$$

So the daily recommended amount of fiber is $25$grams

Step 3. Verification

Use present formula

$$\begin{gathered} PercentP=\frac{amount}{totalamount}\times 100 \\ P=\frac{7}{25}\times 100 \\ P=0.28\times 100 \\ P=28\% \end{gathered}$$

$7$grams iswidth="19">28% of $25$grams of fiber

So daily recommended amount of fiber is $25$grams is correct.