# Question: 20 is 40 percent of what number

## Step by step solution for calculating 20 is 40 percent of what number

We already have our first value 20 and the second value 40. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 20 = 40% × Y

STEP 2 20 = 40/100× Y

Multiplying both sides by 100 and dividing both sides of the equation by 40 we will arrive at:

STEP 3 Y = 20 × 100/40

STEP 4 Y = 20 × 100 ÷ 40

STEP 5 Y = 50

Finally, we have found the value of Y which is 50 and that is our answer.

You can easily calculate 20 is 40 percent of what number by using any regular calculator, simply enter 20 × 100 ÷ 40 and you will get your answer which is 50

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Here is a Percentage Calculator to solve similar calculations such as 20 is 40 percent of what number. You can solve this type of calculation with your values by entering them into the calculator's fields, and click 'Calculate' to get the result and explanation.

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percent of what number

## Sample questions, answers, and how to

Question: Your friend has a bag of marbles, and he tells you that 40 percent of the marbles are red. If there are 20 red marbles. How many marbles does he have altogether?

Answer: 50 marbles.

How To: In this problem, we know that the Percent is 40, and we are also told that the Part of the marbles is red, so we know that the Part is 20.

So, that means that it must be the Total that's missing. Here is the way to figure out what the Total is:

Part/Total = Percent/100

By using a simple algebra we can re-arrange our Percent equation like this:

Part × 100/Percent = Total

If we take the "Part" and multiply it by 100, and then we divide that by the "Percent", we will get the "Total".

Let's try it out on our problem about the marbles, that's very simple and it's just two steps! We know that the "Part" (red marbles) is 20.

So step one is to just multiply that Part by 100.

20 × 100 = 2000

In step two, we take that 2000 and divide it by the "Percent", which we are told is 40.

So, 2000 divided by 40 = 50

And that means that the total number of marbles is 50.

Question: A high school marching band has 20 flute players, If 40 percent of the band members play the flute, then how many members are in the band?

Answer: There are 50 members in the band.

How To: The smaller "Part" in this problem is 20 since there are 20 flute players and we are told that they make up 40 percent of the band, so the "Percent" is 40.

Again, it's the "Total" that's missing here, and to find it, we just need to follow our 2 step procedure as the previous problem.

For step one, we multiply the "Part" by 100.

20 × 100 = 2000

For step two, we divide that 2000 by the "Percent", which is 40.

2000 divided by 40 equals 50

That means that the total number of band members is 50.

## Have time and want to learn the calculation?

Let's assume the unknown value is Y

First writing it as: 100% / Y = 40% / 20

Drop the percentage marks to simplify your calculations: 100 / Y = 40 / 20

Multiply both sides by Y to move Y on the right side of the equation: 100 = ( 40 / 20 ) Y

Simplifying the right side, we get: 100 = 40 Y

Dividing both sides of the equation by 40, we will arrive at 50 = Y

This leaves us with our final answer: 20 is 40 percent of 50

## Percentage Table

 20 is 40 percent of 50 20.01 is 40 percent of 50.025 20.02 is 40 percent of 50.05 20.03 is 40 percent of 50.075 20.04 is 40 percent of 50.1 20.05 is 40 percent of 50.125 20.06 is 40 percent of 50.15 20.07 is 40 percent of 50.175 20.08 is 40 percent of 50.2 20.09 is 40 percent of 50.225 20.1 is 40 percent of 50.25 20.11 is 40 percent of 50.275 20.12 is 40 percent of 50.3 20.13 is 40 percent of 50.325 20.14 is 40 percent of 50.35 20.15 is 40 percent of 50.375 20.16 is 40 percent of 50.4 20.17 is 40 percent of 50.425 20.18 is 40 percent of 50.45 20.19 is 40 percent of 50.475
 20.2 is 40 percent of 50.5 20.21 is 40 percent of 50.525 20.22 is 40 percent of 50.55 20.23 is 40 percent of 50.575 20.24 is 40 percent of 50.6 20.25 is 40 percent of 50.625 20.26 is 40 percent of 50.65 20.27 is 40 percent of 50.675 20.28 is 40 percent of 50.7 20.29 is 40 percent of 50.725 20.3 is 40 percent of 50.75 20.31 is 40 percent of 50.775 20.32 is 40 percent of 50.8 20.33 is 40 percent of 50.825 20.34 is 40 percent of 50.85 20.35 is 40 percent of 50.875 20.36 is 40 percent of 50.9 20.37 is 40 percent of 50.925 20.38 is 40 percent of 50.95 20.39 is 40 percent of 50.975
 20.4 is 40 percent of 51 20.41 is 40 percent of 51.025 20.42 is 40 percent of 51.05 20.43 is 40 percent of 51.075 20.44 is 40 percent of 51.1 20.45 is 40 percent of 51.125 20.46 is 40 percent of 51.15 20.47 is 40 percent of 51.175 20.48 is 40 percent of 51.2 20.49 is 40 percent of 51.225 20.5 is 40 percent of 51.25 20.51 is 40 percent of 51.275 20.52 is 40 percent of 51.3 20.53 is 40 percent of 51.325 20.54 is 40 percent of 51.35 20.55 is 40 percent of 51.375 20.56 is 40 percent of 51.4 20.57 is 40 percent of 51.425 20.58 is 40 percent of 51.45 20.59 is 40 percent of 51.475
 20.6 is 40 percent of 51.5 20.61 is 40 percent of 51.525 20.62 is 40 percent of 51.55 20.63 is 40 percent of 51.575 20.64 is 40 percent of 51.6 20.65 is 40 percent of 51.625 20.66 is 40 percent of 51.65 20.67 is 40 percent of 51.675 20.68 is 40 percent of 51.7 20.69 is 40 percent of 51.725 20.7 is 40 percent of 51.75 20.71 is 40 percent of 51.775 20.72 is 40 percent of 51.8 20.73 is 40 percent of 51.825 20.74 is 40 percent of 51.85 20.75 is 40 percent of 51.875 20.76 is 40 percent of 51.9 20.77 is 40 percent of 51.925 20.78 is 40 percent of 51.95 20.79 is 40 percent of 51.975
 20.8 is 40 percent of 52 20.81 is 40 percent of 52.025 20.82 is 40 percent of 52.05 20.83 is 40 percent of 52.075 20.84 is 40 percent of 52.1 20.85 is 40 percent of 52.125 20.86 is 40 percent of 52.15 20.87 is 40 percent of 52.175 20.88 is 40 percent of 52.2 20.89 is 40 percent of 52.225 20.9 is 40 percent of 52.25 20.91 is 40 percent of 52.275 20.92 is 40 percent of 52.3 20.93 is 40 percent of 52.325 20.94 is 40 percent of 52.35 20.95 is 40 percent of 52.375 20.96 is 40 percent of 52.4 20.97 is 40 percent of 52.425 20.98 is 40 percent of 52.45 20.99 is 40 percent of 52.475