a box contains 4 red balls. 6 green balls. and 5 yellow balls. in how many ways can you choose 4 green balls?
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a box contains 4 red balls. 6 green balls. and 5 yellow balls. in how many ways can you choose 4 green balls?
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Answer:
27/182 total of balls
Step-by-step explanation:
No. of red balls=4
No. of yellow balls=5
No. of green balls=6
Total of balls=15
Reqd Combination is G, G, (R/Y)
SO ⁶C2 × ⁹C1
= 6!/2!4! × 9!/8!1!
=15×9
=135
total no. of ways =¹⁶C3
=15!/3!12!
=13×14×15/3
=910
Probability = 135/910
=27/182.
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