Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (rebeccapink6398):

@Harsha19111999

OpenStudy (acxbox22):

there are 30 marbles in total 4 are black 4/30=2/15

OpenStudy (rebeccapink6398):

thanks :D

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!