49. A bag contains 25 balls such as 10 balls are red, 7 are white and 8 are blue. What is the minimum number of balls that must be picked up from the bag blindfolded (without replacing any of it) to be assured of picking at least one ball of each colour?
a) 10
b) 18
c) 63
d) 35
Answers
Answered by
11
Answer:
I think b will be the answer
Explanation:
Please mark as BRANLIEST
Answered by
6
Answer:
18
Explanation:
if you pick first ten balls then it is possible that they all are red then you have to pick another ball or it could be possible that the next 7 balls are white then you need to pick 1 more. so when you pick 1 more it will definitely the blue one. so they all will be different in colors.10+7+1=18
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