Ratio of Apples to Pears to Oranges
Date: 09/13/2002 at 11:22:13 From: Monique Subject: Ratios If the ratio of apples to pears to oranges is 7:8:10, how many pears are there if the total number of fruits is 500? I don't even know where to begin. These ratio questions puzzle me.
Date: 09/13/2002 at 12:07:08 From: Doctor White Subject: Re: Ratios Monique - If you had 7 apples, 8 pears, and 10 oranges, then you would have 25 fruits. Hence the ratio of apples to pears to oranges would be 7:8:10. You could create a chart that would eventually find your answer. apples pears oranges fruits 7 8 10 25 14 16 20 50 21 24 30 75 28 32 40 100 ...continuing the pattern you can find your answer. Another method is to set up an equation to find your answers. It could look like this: 7x + 8x + 10x = 500 Now you can solve to find x, which is the constant. Then multiply by 7 to find the number of apples, by 8 to find the number of pears, and by 10 to find the number of oranges. I hope both of these techniques help you to work with the type of problem that you are having trouble with. If you need further help with this then let me know. Come back to see us soon. - Doctor White, The Math Forum http://mathforum.org/dr.math/
Date: 09/13/2002 at 14:41:30 From: Monique Subject: Thank you (Ratios) Thank you Dr. Math. That was extremely helpful!
Search the Dr. Math Library:
Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.