20 of 400

0
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20 percent *400 =

(20*400)/100 =

8000/100 = 80

20 percent of 400 = 80

Question: What is 20 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=20%

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

$400=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

400/x=100%/20%

Step 7: Again, the reciprocal of both sides gives

x/400=20/100

 x=80$.

Therefore, 20% of 400 is $80.

 

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