Percentage Calculator: What is 30 percent of 400.? = 120

30 percent *400. =

(30:100)*400. =

(30*400.):100 =

12000:100 = 120

Now we have: 30 percent of 400. = 120

Question: What is 30 percent of 400.?

Percentage solution with steps:

Step 1: Our output value is 400..

Step 2: We represent the unknown value with {x}.

Step 3: From step 1 above,{400.}={100\%}.

Step 4: Similarly, {x}={30\%}.

Step 5: This results in a pair of simple equations:

{400.}={100\%}(1).

{x}={30\%}(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

\frac{400.}{x}=\frac{100\%}{30\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{400.}=\frac{30}{100}

\Rightarrow{x} = {120}

Therefore, {30\%} of {400.} is {120}

Percentage of

Difference

400. percent *30 =

(400.:100)*30 =

(400.*30):100 =

12000:100 = 120

Now we have: 400. percent of 30 = 120

Question: What is 400. percent of 30?

Percentage solution with steps:

Step 1: Our output value is 30.

Step 2: We represent the unknown value with {x}.

Step 3: From step 1 above,{30}={100\%}.

Step 4: Similarly, {x}={400.\%}.

Step 5: This results in a pair of simple equations:

{30}={100\%}(1).

{x}={400.\%}(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

\frac{30}{x}=\frac{100\%}{400.\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{30}=\frac{400.}{100}

\Rightarrow{x} = {120}

Therefore, {400.\%} of {30} is {120}

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