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OpenStudy (anonymous):
How many ways can a group of three students be chosen from a class of 30?
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OpenStudy (esshotwired):
This seems like a Math question... Post it in the Math section for more reliable and faster help.
OpenStudy (paki):
hey rima, welcome to open study..... :) please post your question in the relevant section, so that it may be answered... :) here, it will be solved by the combination formula.... nCr= n!/(n-r)! * r! ... here n=30 and r=3... 30C3.... solve it now.... @rima7157
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