Hi, can anybody help me with below question? I can solve it using a table, but not algebraically in a fraction as in my solution.
Question:
A company sells only pens and pencils. The revenue from pen sales in 2007 was up 5% from 2006, but the revenue from pencil sales declined 13% over the same period. If overall revenue was down 1% from 2006 to 2007, what was the ratio of pencil revenue to pen revenue in 2006?
Solution
[spoiler](+5%)(100)+(-13%)(50) / (100 + 50) = (+5 - 6,5) / 150 = -1,5 / 150 = -1%
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Question:
A company sells only pens and pencils. The revenue from pen sales in 2007 was up 5% from 2006, but the revenue from pencil sales declined 13% over the same period. If overall revenue was down 1% from 2006 to 2007, what was the ratio of pencil revenue to pen revenue in 2006?
Solution
[spoiler](+5%)(100)+(-13%)(50) / (100 + 50) = (+5 - 6,5) / 150 = -1,5 / 150 = -1%
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