Combination - Jamb Mathematics Past Questions and Answers

Question 11:

• JAMB 2006

For what of n is ⁿ⁺¹C₃ = 4(ⁿC₃)?

A. 6
B. 5
C. 4
D. 3

Question 12:

• JAMB 2007

A senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered?

A. 640
B. 840
C. 520
D. 920

Question 13:

• JAMB 2007

In how many ways can 6 subjects be selected from 10 subjects for an examination

A. 218
B. 216
C. 215
D. 210

Question 14:

• JAMB 2008

Find the number of ways of selecting 6 out of 10 subjects for an examination

A. 128
B. 216
C. 215
D. 210

Question 15:

• JAMB 2009

In how many ways can a delegation of 3 be chosen from 5 men and 3 women. If at least 1 man and 1 woman must be included?

A. 15
B. 28
C. 30
D. 45