in Analytical Aptitude
282 views
3 votes
3 votes

there are 3 Indians and 3 Chinese in a group of 6 people .how many subgroups of this group can we choose so that every subgroup has at least one Indian?

please help me out in this question also explain how to handle atleast case

in Analytical Aptitude
282 views

1 Answer

2 votes
2 votes
1.) group with one Indian  – 3C1(choose 1 Indian out of three) * 2^3 (for Chinese people, each Chinese have 2 possibility either he present in group or not) = 3 * 2^3 =  24

2.) group with 2 Indian = 3C2 * 2^3 = 24

3.) group with 3 Indian 3C3 * 2^3 = 8

total group with at least one Indian   = 24 + 24 + 8 = 56

OR

Total Group  – group without Indian

(2^6 – 1) – (2^3) = 56
edited by

1 comment

thanku
0
0

Related questions

0 votes
0 votes
0 answers
1
Nikitasingh asked in Others Jun 16, 2018
134 views
Nikitasingh asked in Others Jun 16, 2018
134 views
0 votes
0 votes
0 answers
2
2 votes
2 votes
1 answer
3