Math, asked by Rohitahlawat7374, 11 months ago

In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there? 159 194 205 209

Answers

Answered by harivzm0

0

=6C1*4C3+6C2*4C2+6C3*4C1

=6C1*4C1+6C2*4C2+6C3*4C1

=6*4+15*6+20*4

=24+90+80

=194✓

Previous Question

Next Question

Similar questions

Math, 6 months ago

a dash is a parallelogram with one angle a right angle...

English, 6 months ago

Read the following passage and answer the questions: - (1*8=8) It was a dark autumn night. The old banker was pacing from corner to corner of his study, recalling to his mind the party he gave in the autumn fifteen years before. There were many clever people at the party and much interesting conversation. They talked among other things of capital punishment. The guests, among them not a...

Social Sciences, 6 months ago

please answer fast ...

Math, 11 months ago

In a marathon, 90% of runners managed to complete it and 30% of them were men. If 270 men completed it, how many total runners began the marathon?

Math, 11 months ago

In a group of 15 people, it is possible for each person to have exactly 3 friends.

Science, 1 year ago

What is most important thing in life... apart from subject i am asking...lets us talk on this...

Math, 1 year ago

is my ans is correct with reason...

English, 1 year ago

Write an Short essay on Ambition Is the Greatest Enemy of Peace...