Solved: What is 42 Percent of 20? = 8.4 | 42% of 20 = 8.4

Percentage Calculator: 42 Percent of 20

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Calculation of What is 42 percent of 20:

42 percent * 20 =

(42 / 100) * 20 =

(42 * 20) / 100 =

840 / 100 =

8.4

Now we have the answer: 42% of 20 = 8.4. Alternatively, we can express it as: 8.4 is equivalent to 42 percent of 20.

Mathematical Notation: 42% * 20 = (42 / 100) * 20 = (42 * 20) / 100 = 840 / 100 = 8.4

Formula we can use to solve our problem:

Formula: X/100 × Y

Let's use the example of "What is 42% of 20?" to understand the calculation:

= 42/100 × 20 = 8.4

Check our "What is X Percent of Y" Calculator for more methods and formulas

Solution for "What is 42 percent of 20" with Step-by-step guide:

Step 1: Start with the given output value, which is 8.4.

Step 2: Use the variable 'x' to represent the unknown value.

Step 3: From Step 1, we know that 8.4 is equivalent to 100%.

Step 4: Similarly, we can determine that 'x' represents 42% of the value.

Step 5: This leads us to two simple equations:

Equation 1: 20 equals 100%
Equation 2: 'x' equals 42%

Step 6: To solve for 'x', we divide equation 1 by equation 2, considering that both equations have the same unit (%). Thus, we obtain:
20 / x = 100% / 42%

Step 7: By taking the reciprocal of both sides of the equation obtained in Step 6, we have:
x / 20 = 42 / 100
⇒ x = 8.4

Therefore, we conclude that 42% of 20 is equal to 8.4.

I hope explanation above helps you understand how to calculate 42 percent of 20

Written by: Dr. Mohammad Monir Uddin

Associate Professor, Ph.D. (in Mathematics), M.Sc. (in Applied Mathematics)

Quick Tip - How Calculate 42 percent of 20 on calculator

If you want to use a calculator to know what is 42 percent of 20, simply enter 42 ÷ 100 × 20 and you will get your answer which is 8.4

Frequently Asked Questions on What is 42 percent of 20

1. How do I calculate percentage of a total?

To calculate percentages of a total: determine the part, divide it by the total, and multiply by 100.

2. What is 42% of 20?

42 percent of 20 is 8.4.

3. How to calculate 42 percent of 20?

Multiply 42/100 by 20 = (42/100) * 20 = (42 * 20) / 100 = 8.4.

2. 42 of 20?

42 of 20 = 8.4.

4. what is 42 percent of 20 dollars?

8.4 dollars.

Sample questions and answers

Question: At a high school 42 percent of seniors went on a mission trip. There were 20 seniors. How many seniors went on the trip?

Answer: 8.4 seniors went on the trip.

Question: 42 percent of the children in kindergarten like Thomas the Train. If there are 20 kids in kindergarten, how many of them like Thomas?

Answer: 8.4 kids like Thomas the Train.

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

Answer: 42 percent of 20 is 8.4. Alternatively, we can say that 8.4 is equivalent to 42% of 20.