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1. Study the following graph carefully and answer the given questions.
The total production of companies A and D in year 2010 is what percent of total production of four companies in the year 2012?
= 20 + 60
= 80
In 2012, A + B + C + D
= 20 + 50 + 20 + 40
= 130
= × 100
≈ 61%
The total production of companies A and D in year 2010 is what percent of total production of four companies in the year 2012?
Solution:
In 2010, A and D= 20 + 60
= 80
In 2012, A + B + C + D
= 20 + 50 + 20 + 40
= 130
= × 100
≈ 61%