praetorian123 wrote:

7 cars compete in a race and finish at different times. find the probability that prat who drives the blue car finishes ahead of martin who drives a red car?

Since there is no difference in the cars, each car will be equally likely to be ahead of the other.

1/2.

_________________

Best,

AkamaiBrah

Former Senior Instructor, Manhattan GMAT and VeritasPrep

Vice President, Midtown NYC Investment Bank, Structured Finance IT

MFE, Haas School of Business, UC Berkeley, Class of 2005

MBA, Anderson School of Management, UCLA, Class of 1993