Please solve the problem below:

Q. From a group of 10students, 6 are to be chosen for a picnic party. There are 3students who decide that either all of them or none of them will join. In how many ways can the picnic party be chosen?

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- Nov 1st 2007, 11:07 PMCyanSnowfind combinations
Please solve the problem below:

Q. From a group of 10students, 6 are to be chosen for a picnic party. There are 3students who decide that either all of them or none of them will join. In how many ways can the picnic party be chosen? - Nov 2nd 2007, 03:04 AMPlato
$\displaystyle {7 \choose 3} + {7 \choose 6}$