Puzzle of the day: 137
If there are 10 balls each of Red, blue and green color in a box, then what is the minimum number of balls that should be taken out of the box to ensure that 3 of them are of same color
- 23
- 22
- 7
- 12
If there are 10 balls each of Red, blue and green color in a box, then what is the minimum number of balls that should be taken out of the box to ensure that 3 of them are of same color
Answer: (3) 7 Solution: in the worst case scenario when 6 balls are taken out , there will b 2 red balls, 2 blue balls and 2 green balls. Them moment 7th ball is picked up, it will be one of the 3 colored balls. Hence now in there will 3 same colored balls.
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