Question: 330 is 33 percent of what number?

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Question: Your friend has a bag of marbles, and he tells you that 33 percent of the marbles are red. If there are 330 red marbles. How many marbles does he have altogether?

Answer: 1000 marbles.

How To: In this problem, we know that the Percent is 33, and we are also told that the Part of the marbles is red, so we know that the Part is 330.

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 330.

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

330 × 100 = 33000

In step two, we take that 33000 and divide it by the "Percent", which we are told is 33.

So, 33000 divided by 33 = 1000

And that means that the total number of marbles is 1000.

Question: A high school marching band has 330 flute players, If 33 percent of the band members play the flute, then how many members are in the band?

Answer: There are 1000 members in the band.

How To: The smaller "Part" in this problem is 330 since there are 330 flute players and we are told that they make up 33 percent of the band, so the "Percent" is 33.

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.

330 × 100 = 33000

For step two, we divide that 33000 by the "Percent", which is 33.

33000 divided by 33 equals 1000

That means that the total number of band members is 1000.

Another step by step method

Step 1: Let's assume the unknown value is Y

Step 2: First writing it as: 100% / Y = 33% / 330

Step 3: Drop the percentage marks to simplify your calculations: 100 / Y = 33 / 330

Step 4: Multiply both sides by Y to move Y on the right side of the equation: 100 = ( 33 / 330 ) Y

Step 5: Simplifying the right side, we get: 100 = 33 Y

Step 6: Dividing both sides of the equation by 33, we will arrive at 1000 = Y

This leaves us with our final answer: 330 is 33 percent of 1000

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