yamshi06 wrote:
i approached like this ,
not getting a 3=5/6
atleast=1-5\6
= 1/6
pls explain what is wrong in the approach??
Probability = Favorable Outcomes / Total OutcomesA Die has 6 faces numbered from 1 through 6
i.e. Total Out comes = 6
Favorable outcomes = Numbers atleast 3 = numbers greater than or equal to 3 i.e. {3, 4, 5, 6} = 4
i.e. Probability = 4/6 = 2/3ALTERNATIVELYProbability = 1 -(Unfavorable Outcomes / Total OutcomesUnfavorable outcomes = Numbers less than 3 = i.e. {1, 2} = 2
i.e. Probability = 1 -(2/6) = 1-(1/3) = 2/3I hope it clears your doubt!
_________________
Great Results (Q≥50 and V≥40) l Honest and Effective Admission Support l 100% Satisfaction !!!
One-on-One GMAT Skype classes l On-demand Quant Courses and Pricing l Admissions ConsultingCall/mail: +91-9999687183 l bhoopendra.singh@gmatinsight.com (for FREE Demo class/consultation)
SUCCESS STORIES: From 620 to 760 l Q-42 to Q-49 in 40 days l 590 to 710 + Wharton l FREE GMAT Resource: 22 FREE (FULL LENGTH) GMAT CATs LINKS l OG QUANT 50 Qn+VIDEO Sol.