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6. If x is 4 times bigger than y, and the difference between x and y is 9, what is x equal to?

  • 10
  • 12
  • 9
  • 24

7. Out of 100 pens, 30 are red, 45 are blue and the rest are green. Which of the following expresses the ratio of red pens to green pens to blue pens?

  • 5:9:6
  • 6:5:9
  • 9:6:5
  • 6:9:5