CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

From a class of 25 students, 10 are to be chosen for an excursion party. There are 3 students who decide that either all of them will join or none of them will join. In how many ways can the excursion party be chosen?

Open in App
Solution

If the students will join the party, then the combination will be,

C1=22C7

=170544

If the students will not join the party, then the combination will be,

C2=22C10

=646646

The number of ways that the excursion party can be chosen as,

C=C1+C2

=170544+646646

=817190


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Arithmetic Progression
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon