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laila [671]
2 years ago
8

A fair spinner has 12 equal sections: 4 red, 3 blue and 5 green. It is spun twice. What is the probability of getting the same c

olour twice?
Mathematics
1 answer:
dsp732 years ago
3 0

Answer:

<u>25/72</u>

Step-by-step explanation:

Total outcomes :

  • (5 + 4 + 3)²
  • (12)²
  • 144 outcomes

P (red twice) :

  • 16/144
  • 1/9

P (blue twice) :

  • 9/144
  • 1/16

P (green twice) :

  • 25/144
  • 5/12

Adding :

  • 1/9 + 1/16 + 5/12
  • 16/144 + 9/144 + 25/144
  • 50/144
  • <u>25/72</u>
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