Word Problems/Maths

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Question
Dear Ms.Janet,

I need your help yet again,

The number of cartons of juices to the number of cartons of milk to the number of cartons of soft drinks is in the ratio of 12 : 5 : 1. There are 66 more cartons of juices than soft drinks. How many cartons of milk are there?

Answer
C = total cartons of all drinks
juice:milk:softdrinks = 12:5:1

cartons of juice = 12C/(12+5+1) = 2C/3
cartons of soft drinks = 1C/(12+5+1) = C/18

"There are 66 more cartons of juices than soft drinks."
2C/3 = C/18 + 66
C = 108

cartons of milk = 5C/(12+5+1) = 5108/18 = 30

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Janet Yang

Expertise

Word problems are my favorite type of math questions! I would not feel comfortable answering questions that require specialized knowledge (Physics, Statistics, etc.) because I have not studied these in depth.

Experience

I tutor students (fifth through twelfth grades) and am a Top Contributor on Yahoo!Answers with over 24,000 math solutions.

Publications
Co-author of An Outline of Scientific Writing: For Researchers With English as a Foreign Language.

Education/Credentials
I have a Bachelor's degree in Applied Mathematics from the University of California at Berkeley, and a Master of Business Administration degree from The Wharton School.

Past/Present Clients
George White Elementary School. Homework Help program at the Ridgewood Public Library, Ridgewood, NJ. Individual students.

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