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11. How much per day company produces green cars?
  The company produces 1000 white, black, green and red hoods per day
in the ratio  4 : 8 : 7 : 1 .
 

Explanation:
4 + 8 + 7 + 1 = 20; 1000 : 20 = 50; 50 × 7 = 350.