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Probability that a marble is NOT a certain colour

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

The marbles that are not that colour are all the rest. Write a fraction in lowest terms.

  1. A bag has 4 red, 7 blue and 2 green marbles. One marble is picked at random. What is the probability that it is NOT red? Write a fraction in lowest terms.
  2. A bag has 1 red, 8 blue and 8 green marbles. One marble is picked at random. What is the probability that it is NOT blue? Write a fraction in lowest terms.
  3. A bag has 6 red, 2 blue and 3 green marbles. One marble is picked at random. What is the probability that it is NOT green? Write a fraction in lowest terms.
  4. A bag has 8 red, 3 blue and 2 green marbles. One marble is picked at random. What is the probability that it is NOT blue? Write a fraction in lowest terms.
  5. A bag has 6 red, 3 blue and 8 green marbles. One marble is picked at random. What is the probability that it is NOT red? Write a fraction in lowest terms.
  6. A bag has 1 red, 3 blue and 12 green marbles. One marble is picked at random. What is the probability that it is NOT blue? Write a fraction in lowest terms.
  7. A bag has 12 red, 8 blue and 5 green marbles. One marble is picked at random. What is the probability that it is NOT red? Write a fraction in lowest terms.
  8. A bag has 5 red, 6 blue and 9 green marbles. One marble is picked at random. What is the probability that it is NOT red? Write a fraction in lowest terms.
  9. A bag has 1 red, 3 blue, 11 green and 4 yellow marbles. One marble is picked at random. What is the probability that it is NOT yellow? Write a fraction in lowest terms.
  10. A bag has 15 red, 11 blue, 4 green and 15 yellow marbles. One marble is picked at random. What is the probability that it is NOT green? Write a fraction in lowest terms.
  11. A bag has 11 red, 1 blue, 15 green and 11 yellow marbles. One marble is picked at random. What is the probability that it is NOT blue? Write a fraction in lowest terms.
  12. A bag has 12 red, 4 blue, 2 green and 10 yellow marbles. One marble is picked at random. What is the probability that it is NOT yellow? Write a fraction in lowest terms.
  13. A bag has 19 red, 15 blue, 15 green and 19 yellow marbles. One marble is picked at random. What is the probability that it is NOT blue? Write a fraction in lowest terms.
  14. A bag has 6 red, 12 blue, 12 green and 14 yellow marbles. One marble is picked at random. What is the probability that it is NOT green? Write a fraction in lowest terms.
  15. A bag has 7 red, 19 blue, 15 green and 1 yellow marbles. One marble is picked at random. What is the probability that it is NOT yellow? Write a fraction in lowest terms.
  16. A bag has 9 red, 4 blue, 12 green and 1 yellow marbles. One marble is picked at random. What is the probability that it is NOT red? Write a fraction in lowest terms.
  17. A bag has 11 red, 28 blue, 18 green, 29 yellow and 22 white marbles. One marble is picked at random. What is the probability that it is NOT blue? Write a fraction in lowest terms.
  18. A bag has 20 red, 25 blue, 15 green, 4 yellow and 9 white marbles. One marble is picked at random. What is the probability that it is NOT green? Write a fraction in lowest terms.
  19. A bag has 9 red, 19 blue, 26 green, 17 yellow and 26 white marbles. One marble is picked at random. What is the probability that it is NOT yellow? Write a fraction in lowest terms.
  20. A bag has 27 red, 18 blue, 7 green, 3 yellow and 27 white marbles. One marble is picked at random. What is the probability that it is NOT yellow? Write a fraction in lowest terms.
More free practice: fieldbooklearning.com/practice/grade-7/probability-that-a-marble-is-not-a-certain-colour/

Answer key: Probability that a marble is NOT a certain colour

  1. 9/13
  2. 9/17
  3. 8/11
  4. 10/13
  5. 11/17
  6. 13/16
  7. 13/25
  8. 3/4
  9. 15/19
  10. 41/45
  11. 37/38
  12. 9/14
  13. 53/68
  14. 8/11
  15. 41/42
  16. 17/26
  17. 20/27
  18. 58/73
  19. 80/97
  20. 79/82