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The graph above shows the total sales, in millions of dollars, for three companies, A & B & C, in a particular sector for the years 1998 through 2007 inclusive. Assume these companies are the only three companies active in this particular sector. Companies A & B existed since the 1980s, although only data from 1998 is shown. Company C's first year in existence was 2000.
Company C was responsible for approximately what percent of total sales in the sector in 2007?
Title
Three Companies in a Sector
Your Result
Correct
Difficulty
Easy
Your Pace
0:02
Others' Pace
1:03
Video Explanation
Text Explanation
In 2007, A was at 20M, B was at 32M, and C was at 120M, for a total of 172M. What percent of 172 is 120? Let's approximate this: 10% of 172 is approximately 17, so 20% is 34 and 30% is 51. Well, 51 is approximately equal to the sum of A & B's sales --- if they account for 30%, that must mean C accounts for 70%. Answer = (D).
A more precise calculation:
which we round to 70%. Answer = (D).
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