Percentage Calculator: What is 42 percent of 20.? = 8.4

42 percent *20. =

(42:100)*20. =

(42*20.):100 =

840:100 = 8.4

Now we have: 42 percent of 20. = 8.4

Question: What is 42 percent of 20.?

Percentage solution with steps:

Step 1: Our output value is 20..

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

Step 3: From step 1 above,{20.}={100\%}.

Step 4: Similarly, {x}={42\%}.

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

{20.}={100\%}(1).

{x}={42\%}(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{20.}{x}=\frac{100\%}{42\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{20.}=\frac{42}{100}

\Rightarrow{x} = {8.4}

Therefore, {42\%} of {20.} is {8.4}

Percentage of

Difference

20. percent *42 =

(20.:100)*42 =

(20.*42):100 =

840:100 = 8.4

Now we have: 20. percent of 42 = 8.4

Question: What is 20. percent of 42?

Percentage solution with steps:

Step 1: Our output value is 42.

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

Step 3: From step 1 above,{42}={100\%}.

Step 4: Similarly, {x}={20.\%}.

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

{42}={100\%}(1).

{x}={20.\%}(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{42}{x}=\frac{100\%}{20.\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{42}=\frac{20.}{100}

\Rightarrow{x} = {8.4}

Therefore, {20.\%} of {42} is {8.4}

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