apptitude test-4

India
December 2, 2006 9:32pm CST
7 Pink, 5 Black, 11 Yellow balls are there. Minimum no. atleast to get one black and yellow ball.
1 response
@medooley (1873)
• United States
3 Dec 06
Is this the minimum number to pick to possibly get one black and one yellow or minimum number you would have to pick to guarentee one black and one yellow
• India
3 Dec 06
minimum a black and yellow
@medooley (1873)
• United States
3 Dec 06
Well you could draw two and get lucky... but you would have to draw 13 to be certian that you would get one black and one yellow.
• India
3 Dec 06
answer is 17