SOLUTION: A teacher has 10 boys and 12 girls in her grade school class. In how many ways can she select 9 of the children to be in a play if she must select 4 boys and 5 girls.
Algebra.Com
Question 473568: A teacher has 10 boys and 12 girls in her grade school class. In how many ways can she select 9 of the children to be in a play if she must select 4 boys and 5 girls.
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
number of ways = 10C4 *12C5 = 210*792 = 166320
RELATED QUESTIONS
a teacher has 7 boys and 20 girls in her class. In how many ways can she select 4 of the... (answered by stanbon)
A teacher has 7 boys and 11 girls in her class. In how many ways can she select 8 of the... (answered by stanbon)
A teacher has 18 boys and 11 girls in her class. In how many ways can she select 8 of the (answered by Timnewman)
A teacher has 17 boys and 19 girls in her class. In how many ways can she select 4 of the (answered by stanbon)
A teacher has 20 boys and 10 girls in her class. In how many way can she select 6 of the (answered by ikleyn)
A teacher has 20 boys and 10 girls in her class. In how many way can she select 6 of the (answered by ikleyn)
1. A baseball pitcher has only three pitches: a fast ball, a curve ball, and a
knuckle... (answered by stanbon)
1. A teacher is passing out first-, second-, and third-place prizes for the best student... (answered by ewatrrr)
Ms. Ling has 14 boys and 17 girls in her third-grade
class. How many ways can she select (answered by Aldorozos)