Subject
Bank Exam
Topic
City Bank Ltd. 2011 (PO)
In his pocket a boy has 3 red marbles, 4 blue marbles and 4 green marbles. How many marbles will he have to take out of his pocket to ensure that he has taken out at least one of each color?
In his pocket a boy has 3 red marbles, 4 blue marbles and 4 green marbles. How many marbles will he have to take out of his pocket to ensure that he has taken out at least one of each color?
ক)
3খ)
8গ)
9ঘ)
11Explanation
The worst scenario would be that he has taken 4 blue and 4 green, total of 8 marbles, and still doesn't have 3 distinct colors. But the next draw (9th) will surely be the third color red as there is no other color marble left in pocket.Related questions
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