Mathematics Stack Exchange
Mathematics Stack Exchange

Questions tagged [ratio]

For questions concerning the ratio of a certain quantity to another.

In mathematics, a ratio is a relationship between two quantities indicating how many times the first number contains the second. For example, if a bowl of fruit contains eight oranges and six lemons, then the ratio of oranges to lemons is eight to six (that is, $8:6$, which is equivalent to the ratio $4:3$). The numbers compared in a ratio can be any quantities of a comparable kind, such as objects, persons, lengths, or spoonfuls. A ratio is written "$a$ to $b$" or $a:b$, or sometimes expressed arithmetically as a quotient of the two.

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simple ratio question

x = men , y = women in some company there are 3x men than woman. so I know that x=3y our teacher tought us a rule which he called "give to the poor", in this case the poor is the women because they are less than man, so I gave them 3. but I think…
Ginger
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Difference in ratio in currency problems and other problems

I know this is very basic stuff, but this is what I am troubling to understand, spend almost 3 hours thinking on that, but can't get clear understanding. I am using 3 examples to put my question here- Let, there are 3 girls per Boy, in a class .…
Mahmudul Hasan
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What will be quantity of wine at the end in the vessel?

There are two vessels containing 12 liter of water the other contains 6 liters of wine respectively.One liter of mixture was taken out from each vessel and poured into the other and if this process is to be done four times. Find how much liters of…
Neeraj Sharma
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Ratio question on parallel sides

Besides of knowing the ratio of two sides is in proportion, I don't know how to go further.
Estudiantekriss
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Mathematics of Tolstoy's War and Peace

There is a section in War and Peace, that says: "If the commanders had been guided by reasonable causes, it would seem it should have been quite clear to Napoleon that, having gone thirteen hundred miles and accepting battle with the likely chance…
Ali R.
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Find feet-waist size while having a full body size

Must be a weird question, I was also confused to which community I should post this question. A question about human's body. I want to find a feet to waist size and a waist to head size in CM. I have a body height and it's 172 CM. I read an article…
MxUser127
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Fibonacci: other golden ratios for higher numbers?

I just want to know what this property that I'm about to show is called. So I'm not a mathematician and this may sound dumb :) but I was looking over a Fibonacci article yesterday and studied it's properties and I wondered: Well, if 1 has the golden…
Tudor M.
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Mixing pait with ratios

I was wondering if any of you could solve the following equation, Green paint and yellow paint can be mixed in the ratio 4:7 to make a certain lime colored shade. If a painter has 500 ml of green and 650 ml of yellow, what volume of lime colored…
Christopher U
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Writing a sentence as a proportion

I tried to write the following sentence as a proportion: 6 printers is to 24 computers as 2 printers is to 6 computers: ${6\,\,printers\over 2\,\,printers} = {24\,\,computers\over 6\,\,computers} $ But when I try to check if the statement is true,…
direprobs
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I Have 2 Different Ratios, How Do I Determine Which Has Better Odds?

I'm playing a game, and in the game you have the ability to trade your in game currency for opportunities at better players. I have 2 options: 5 Draws, each with a 2.5% chance of getting a really good player. 1 Draw with a 7% chance of getting a…
CSS Apprentice
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Ratio & Proportion Problem

$\frac{Px}{(b-c)} = \frac{Qy}{(c-a)} = \frac{Rz}{(a-b)}$ Find the value of $(P*a*x) + (Q*b*y) + (R*c*z)$ This question is a problem of my Class VII textbook and no solved examples of the type are included.
Prithvish Baidya
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How the red circle marked equations came ?

Yesterday I started to learn algebra with my own. And the first chapter which I'm learning is Ratio . I'm not getting the red circle marked lines in the below image. I tried to understand it but didn't get it. Thankyou in advance. and sorry for my…
Yogesh Tripathi
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Simplifying the equation.

I have this equation $$\frac{\left(\frac{x}{a}\right)}{a^n} = \frac{\left(\frac{y}{b}\right)}{b^n} = \frac{\left(\frac{x}{a}+\frac{y}{b}\right)}{a^n + b^n}$$ Just wanted to know how the first two terms gets converted to the last…
Kamal
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Ratios of combination

A glass contains vinegar and water in the ratio 1:3. Another glass twice the capacity of the first has vinegar and water in the ratio 1:4. If the contents of both glasses were mixed together in another container what is then the ratio of vinegar to…
Mark
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