# What is 42 percent of 20 (42% of 20)?

Answer: 42 percent of 20 is 8.4

## Fastest method for calculating 42 percent of 20 (42% of 20)

Assume the unknown value is 'Y'

Y = 42 / 100

Y = 42 / 100 x 20

Y = 8.4

Answer: 42 percent of 20 is 8.4

If you want to use a calculator, simply enter 42÷100x20 and you will get your answer which is 8.4

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## Have time and want to learn the details?

Let's solve the equation for Y by first rewriting it as: 100% / 20 = 42% / Y

Drop the percentage marks to simplify your calculations: 100 / 20 = 42 / Y

Multiply both sides by Y to transfer it on the left side of the equation: Y ( 100 / 20 ) = 42

To isolate Y, multiply both sides by 20 / 100, we will have: Y = 42 ( 20 / 100 )

Computing the right side, we get: Y = 8.4

This leaves us with our final answer: 42% of 20 is 8.4