A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.
tutorsd6 : Please, share your Math problem... student : Suppose that a department contains 11 men and 17 women. How many ways are there to form a committee with 6 members if it must have strictly more women than men? tutorsd6 : please wait tutorsd6 : 4w + 2m tutorsd6 : 5w + 1m tutorsd6 : 6w tutorsd6 : there are 3 cases tutorsd6 : 17c4*11c2+17c5*11c1+17c6
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