Permutations and combinations - Quantitative Aptitude (MCQ) questions for Q. 28928

Q.  A trekking group is to be formed having 6 members. They are to be selected from 3 girls, 4 boys and 5 teachers. In how many ways can the group be formed so that there are 3 teachers and 3 boys or 2 girls and 4 teachers?
- Published on 27 Mar 17

a. 55
b. 90
c. 27
d. 144

ANSWER: 55
 
permutation combination

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