a basket contains 7 red balls 3 Green balls and 5 yellow balls what is the probability of obtaining a red ball if two blue balls are added to the basket and 3 red balls are painted blue find the probability of obtaining a blue ball
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19
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Step-by-step explanation:
Total no of balls =7+5+3=15
After adding two blue balls= 15+2=17
Red balls=7 but 3 are painted blue then
Red balls =7-3=4
Probability = 4/17
Total blue balls = 2+3=5
Probability = 5/17
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