Percentage Calculator: What is 21 percent of 15.? = 3.15

21 percent *15. =

(21:100)*15. =

(21*15.):100 =

315:100 = 3.15

Now we have: 21 percent of 15. = 3.15

Question: What is 21 percent of 15.?

Percentage solution with steps:

Step 1: Our output value is 15..

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

Step 3: From step 1 above,{15.}={100\%}.

Step 4: Similarly, {x}={21\%}.

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

{15.}={100\%}(1).

{x}={21\%}(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{15.}{x}=\frac{100\%}{21\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{15.}=\frac{21}{100}

\Rightarrow{x} = {3.15}

Therefore, {21\%} of {15.} is {3.15}

Percentage of

Difference

15. percent *21 =

(15.:100)*21 =

(15.*21):100 =

315:100 = 3.15

Now we have: 15. percent of 21 = 3.15

Question: What is 15. percent of 21?

Percentage solution with steps:

Step 1: Our output value is 21.

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

Step 3: From step 1 above,{21}={100\%}.

Step 4: Similarly, {x}={15.\%}.

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

{21}={100\%}(1).

{x}={15.\%}(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{21}{x}=\frac{100\%}{15.\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{21}=\frac{15.}{100}

\Rightarrow{x} = {3.15}

Therefore, {15.\%} of {21} is {3.15}

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