Combination - Jamb Mathematics Past Questions and Answers

Question 16:

• JAMB 2009

In how many ways can 9 people be seated if 3 chairs are available

A. 720
B. 504
C. 336
D. 210

Question 17:

• JAMB 2010

In how many ways can a committee of 2 women and 3 men be chosen from 6 men and 5 women?

A. 100
B. 200
C. 30
D. 50

Question 18:

• JAMB 2012

Evaluate ⁿ⁺¹C_n-2 If n =15

A. 3630
B. 3360
C. 1120
D. 560

Question 19:

• JAMB 2013

In how many ways can 3 seats be occupied if 5 people are willing to sit?

A. 60
B. 20
C. 5
D. 120

Question 20:

• JAMB 2014

In how many ways can a team of 3 girls be selected from 7 girls?

A. \(\frac{7!}{3!}\)
B. \(\frac{7!}{4!}\)
C. \(\frac{7!}{3!4!}\)
D. \(\frac{7!}{2!5!}\)