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1.  Study the table given below carefully and answer the question that follow:
Number of Athletes (In Hundred) Who Participated In a Sports Event from 5 different Countries Over the Years.
M → Male     F → Female
Country → A B C D E
Years ↓ M F M F M F M F M F
2005 4.4 3.3 6.3 4.2 4.5 3.1 5.6 4.1 4.7 2.1
2006 6.6 4.2 8.4 6.2 6.9 3.3 8.4 6.3 7.8 5.2
2007 4.6 1.8 7.4 4.8 4.8 2.8 9.3 7.3 8.7 6.5
2008 9.6 4.9 11.4 8.4 6.6 4.2 12.6 9.4 8.9 5.8
2009 11.8 6.4 10.6 5.2 7.9 6.3 14.4 10.2 11.8 9.2
2010 8.2 5.2 6.4 7.2 10.8 6.9 15.6 12.1 13.6 9.8

What was the approximate percentage decrease in the number of male athletes who participated from Country C in the year 2007 as compared to the previous year?

Solution:
  Number of male athletes in 2006 from C
  = 6.9 × 100
  = 690
  Number of male athletes in 2007 from C
  = 4.8 ×100
  = 480
Decrease %=(690480690×100)%=(210690×100)%=70023%=30.4%30%

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